p e r f o r m a n c e evaluation report - … ntdc and ke...2015-16 87 1.644 2.4 8.322 system...

Based on Rep or ted Data of

N T D C & K - E l e c t r i c

With a comparison to

2010 -11 thr oug h 2014 -15

As per

Per for mance St and ards

(Transmission) Rules-2005

Standards Department

N a t i o n a l E l e c t r i c P o w e r

R e g u l a t o r y A u t h o r i t y

P E R F O R M A N C E

E V A L U A T I O N R E P O R T

i

Contents

0 EXECUTIVE SUMMARY ................................................................................................................... ES-1

1 INTRODUCTION ....................................................................................................................................... 1

1.1 REPORTING REQUIREMENT .................................................................................................................... 1

1.2 COMPLIANCE ......................................................................................................................................... 1

1.2.1 Rule 7 of PSTR 2005 (System Voltage) ....................................................................................... 1

1.2.2 Rule 8 of PSTR 2005 (System Frequency) .................................................................................. 1

1.3 ANALYSIS PARAMETERS ........................................................................................................................ 2

2 BRIEF ABOUT NTDC ................................................................................................................................ 3

2.1 LICENCE ............................................................................................................................................... 3

2.2 TRANSMISSION NETWORK .................................................................................................................... 3

3 ANALYSIS OF ANNUAL PERFORMANCE REPORT (APR) ............................................................. 4

3.1 SYSTEM RELIABILITY ............................................................................................................................ 4

3.1.1 System Duration of Interruption ................................................................................................... 4

3.1.2 System Frequency of Interruption ................................................................................................ 5

3.2 SYSTEM SECURITY ................................................................................................................................. 5

3.2.1 System Collapses .......................................................................................................................... 7

3.3 QUALITY OF SUPPLY .............................................................................................................................. 8

3.3.1 System Voltage............................................................................................................................. 8

3.3.2 System Frequency ...................................................................................................................... 14

4 FINDINGS/RECOMMENDATIONS ...................................................................................................... 16

5 BRIEF ABOUT K-ELECTRIC ................................................................................................................ 17

5.1 LICENCE .............................................................................................................................................. 17

5.2 TRANSMISSION NETWORK .................................................................................................................. 17

6 ANALYSIS OF ANNUAL PERFORMANCE REPORT (APR) ........................................................... 18

6.1 SYSTEM RELIABILITY .......................................................................................................................... 18

6.1.1 System Duration of Interruption ................................................................................................. 18

6.1.2 System Frequency of Interruption .............................................................................................. 19

6.2 SYSTEM SECURITY ............................................................................................................................... 19

6.3 QUALITY OF SUPPLY ............................................................................................................................ 20

6.3.1 System Voltage........................................................................................................................... 20

6.3.2 System Frequency ...................................................................................................................... 21

7 FINDINGS/RECOMMENDATIONS ...................................................................................................... 22

APPENDICES ...................................................................................................................................................... 23

ii

Table of Figures

Figure 2.1: Grid stations detail (NTDC) ................................................................................................................. 3

Figure 3.1: Total outages hours recorded at all interconnection points (excluding 132kV line tripping) ............... 4

Figure 3.2: Total number of interconnection points ............................................................................................... 4

Figure 3.3: System Duration of Interruption (Hrs/Point) ........................................................................................ 4

Figure 3.4: Total number of outages hours recorded at all 132kV outgoing circuits (excluding 132kV line

tripping) .............................................................................................................................................. 5

Figure 3.5: Total number of 132kV circuits ........................................................................................................... 5

Figure 3.6: System Frequency of Interruption (No. of outages/circuit) .................................................................. 5

Figure 3.7: Region wise loss of supply incidents ................................................................................................... 6

Figure 3.8: Month wise loss of supply incidents .................................................................................................... 6

Figure 3.9: Grid station wise loss of supply incidents (2015-16) ........................................................................... 6

Figure 3.10: Number of voltage variations, violating the prescribed limits ........................................................... 8

Figure 3.11: Number of voltage variations, violating the prescribed limits (NTDC region wise) .......................... 9

Figure 3.12: Number of voltage variations, violating the prescribed limits (NTDC Islamabd Region) ................. 9

Figure 3.13: Number of voltage variations, violating the prescribed limits (NTDC Lahore Region) .................. 10

Figure 3.14: Number of voltage variations, violating the prescribed limits (NTDC Multan Region) .................. 11

Figure 3.15: Number of voltage variations, violating the prescribed limits (NTDC Hyderabad Region) ............ 12

Figure 3.16: Prescribed voltage limits as per PSTR 2005 .................................................................................... 12

Figure 3.17: Highest voltage recorded at 500 kV grid stations under Normal condition ..................................... 12

Figure 3.18: Highest voltage recorded at 220 kV grid stations under Normal condition ..................................... 13

Figure 3.19: Lowest voltage recorded at 220 kV grid stations under Normal condition ...................................... 13

Figure 3.20: Highest frequency recorded (Hz) ..................................................................................................... 15

Figure 3.21: Lowest frequency recorded (Hz) ...................................................................................................... 15

K-Electric

Figure 6.1: Total outages hours recorded at all interconnection points (excluding 132kV line tripping) ............. 18

Figure 6.2: Total number of interconnection points ............................................................................................. 18

Figure 6.3: System Duration of Interruption (Hrs/Point) ...................................................................................... 18

Figure 6.4: Total number of outages hours recorded at all 132kV outgoing circuits (excluding 132kV line

tripping) ............................................................................................................................................ 19

Figure 6.5: Total number of 132kV circuits ......................................................................................................... 19

Figure 6.6: System Frequency of Interruption (No. of outages/circuit) ................................................................ 19

Figure 6.7: K-Electric ENS trend (Million kWh) ................................................................................................. 20

Figure 6.8: No. of voltage variations, violating the prescribed limits ................................................................... 20

Figure 6.9: Highest frequency recorded (Hz) ....................................................................................................... 21

Figure 6.10: Lowest frequency recorded (Hz) ...................................................................................................... 21

iii

Table of Tables

Table 1.1: Analysis Parameters .............................................................................................................................. 2

Table 3.1: Reported ENS ........................................................................................................................................ 6

Table 3.2: Loss of supply incidents, average ENS, duration & financial impact per incident (NTDC) ................. 6

Table 3.3: System collapses detail 2014-15 & 2015-16 ......................................................................................... 7

Table 3.4: Number of voltage variations, violating the prescribed limits (NTDC) ................................................ 8

Table 3.5: Number of voltage variations, violating the prescribed limits (NTDC Islamabd Region) .................... 9

Table 3.6: Number of voltage variations, violating the prescribed limits (NTDC Lahore Region) ...................... 10

Table 3.7: Number of voltage variations, violating the prescribed limits (NTDC Multan Region) ..................... 11

Table 3.8: Number of voltage variations, violating the prescribed limits (NTDC Hyderabad Region) ............... 11

Table 3.9: NTDC system frequency details .......................................................................................................... 14

Table 3.10: NTDC system frequency 2015-16 ..................................................................................................... 14

K-Electric

Table 6.1: Reported ENS ...................................................................................................................................... 20

Table 6.2: Loss of supply incidents, average ENS, duration & financial impact per incident .............................. 20

Table 6.3: K-Electric system frequency 2015-16 ................................................................................................. 21

ES-1

0 EXECUTIVE SUMMARY

National Electric Power Regulatory Authority (NEPRA) is the sole regulator of power sector

in Pakistan. Provision of safe, reliable, efficient and affordable electric power to the

electricity consumers is an integral part of NEPRA’s regulatory regime.

In order to encourage safe, efficient and reliable transmission service, NEPRA has framed the

Performance Standards (Transmission) Rules 2005 (PSTR)1. Under PSTR, each transmission

licensee is required to submit to NEPRA an Annual Performance Report (APR) in a manner

as prescribed in the PSTR. These performance reports are analyzed by NEPRA in light of the

performance parameters such as System duration of interruption, System frequency of

interruption, Energy not served (ENS), Loss of supply incidents and its financial impact,

System Collapses, Voltage and Frequency variation violation limits prescribed in PSTR,

Highest and Lowest voltage recorded at NTDC’s 500kV and 220kV grid stations under

Normal system conditions.

The APRs for the year 2015-16, submitted by the transmission licensees i.e. National

Transmission & Despatch Company (NTDC) and K-Electric, were reviewed on the basis of

these parameters. Highlights of the analysis/findings are given below:-

Performance of NTDC

System duration of interruption: System duration of interruption is a reliability indicator

that measures the average outage duration that an interconnection point observes over a year.

The interruption was witnessed around 0.46 Hours (27.6 minutes) which shows an increase of

21% compared to preceding year’s 0.38 Hours (22.8 minutes).

System frequency of interruption: System frequency of interruption is a reliability

parameter that measures the average number of outages per circuit in a year. It has been

observed that average number of outages per circuit for NTDC is 0.19, showing a 37%

improvement over the previous year i.e. 0.30.

Energy not served (ENS): In order to gauge system security, the estimates of total ENS

during the year as reported by the licensee has been analyzed. The total ENS as reported by

NTDC is 143 million kWh. Based on the energy transportation charges2 of NTDC and

average energy sale rate3 of CPPA-G, the financial impact amounts to around Rs. 724

million.

1 Under section 46 of the Regulation of Generation, Transmission and Distribution of Electric Power Act 1997 (XL of 1997), read with

section 7 (2) (c) and section 34 thereof, the National Electric Power Regulatory Authority, with the approval of Federal Government, has

made the Performance Standards (Transmission) Rules (PSTR) notified vide S.R.O 1138(I)/2005 dated 15th November, 2005. 2 NTDC tariff determination 2015-16 & 2016-17

3 CPPA-G Monthly energy procurement reports 2015-16:- Average energy sale rate = Rs. 4.9/kWh.

ES-2

Loss of supply incidents: NTDC reported 87 incidents of loss of supply during the year

2015-16 which translates into total duration of 207 hours. Based on this, incident wise

average ENS, average duration along with financial impact has been assessed for NTDC. The

detail is given below:-

Year Loss of Supply Incidents

Average ENS

per Incident

Average Duration

per Incident

Financial Impact

per Incident

(Nos.) (Million kWh) (Hrs) Rs. (Million)

2014-15 125 4.264 1.2 42.6

2015-16 87 1.644 2.4 8.322

System Collapses: As reported by NTDC, these incidents include a partial and a major

system collapse in the year 2015-16. The details are summarized below:-

S.

No. Date

Loading at

Interruption time

Duration of

Interruption No. of

emanating

132kV circuits Remarks

MW Mins Hrs

1 15-01-2016 4441 634 10.6 258

Partial system collapse

Northern Network went under dark from

Sheikh Muhammadi Peshawar to Multan.

2 21-01-2016 9941 413 6.9 454

Major system collapse

Whole Network went under dark from Sheikh Muhammadi Peshawar to NKI

Karachi.

Voltage variations violating prescribed limits: NEPRA has prescribed limits for voltage

variations in the PSTR. During year 2015-16, number of voltage violations for NTDC

remained 125,233 and indicates a 16% reduction as compared to 149,475 in preceding year.

However, it has been noted that 500kV Rawat & NKI Karachi and 220kV Daudkhel, Mardan,

Kala Shah Kaku, New Kot Lakhpat, Ravi, Vehari, Quetta and Sibbi are the worst performing

grid stations with respect to voltage fluctuations beyond the prescribed limits.

Highest and Lowest voltage recorded under normal system condition: The highest

voltage recorded due to voltage variations at 500kV voltage class was 638kV recorded at

Guddu. The voltage of 638kV shows approximately 22% variation with respect to allowed

limit (±5% = 525/475kV).

Similarly, at 220kV level it has been observed that highest voltage was 255kV recorded at

Khuzdar. Voltage of 255kV indicates approximately 10% variation with respect to allowed

limit (±5% = 231/209kV).

Under normal system condition, the lowest voltage recorded at different 220kV grid stations

ranged from 187kV to 150kV. Some of the grid stations with lowest voltages are given

hereunder:-

Name of Grid Station Lowest Voltage Recorded (kV) %age variation w.r.t allowed limit

220kV New Kot Lakhpat 150 28.2%

220kV WAPDA Town 160 23.4%

220kV Sialkot 170 18.7%

220kV Quetta 175 16.3%

220V Kala Shah Kaku 180 13.9%

220kV Gakkhar 187 10.5%

ES-3

In order to diagnose the root cause of low voltage profile, NEPRA is in the process to initiate

monitoring activities on periodic basis to avoid any undesirable condition on the system and

ensure continuity and stability of supply to the electricity consumers of Pakistan.

Frequency variations violating prescribed limits: NEPRA has prescribed limits for

frequency variations under PSTR. During the reported period, NTDC system frequency

varied from 45 Hertz to 51.47 Hertz and has violated the prescribed limits 248 times,

however, it has shown improvement in comparison to the preceding year. The detail is given

below:-

Description / Unit / Year Unit 2014-15 2015-16

Number of times Frequency

remained outside the Limits In a year 1264 248

Average/month 105 21

Average/day 3.5 0.7

Time duration the Frequency

remained outside the Limits Days 10.43 1.6

Hours 250.33 37.9

%age of year 2.86 0.43

Maximum Continuous

period of Deviation Hours 2.48 1.5

Minutes 149 89

Performance of K-Electric

System duration of interruption: For K-Electric, system duration of interruption during the

year 2015-16 remained at around 1.47 Hours (1 hour & 28.2 minutes) which is lower over the

previous year by 6.96%.

System frequency of interruption: Similarly, system frequency of interruption for K-

Electric remained at around 0.32 that indicates that it has not shown any improvement and

remained at the same level as compared to 2014-15.

Energy not served (ENS): To gauge system security, the estimates of total ENS during the

year as reported by K-Electric has been analyzed. The total ENS as reported by K-Electric is

4.808 million kWh. On the basis of average sale rate4 of K-Electric, the financial impact of

4.808 million units amounts to approximately Rs. 62.4 million.

Loss of supply incidents: The number of loss of supply incidents, average ENS, duration and

financial impact per incident assessed for K-Electric is given below.


Average ENS

per Incident

Average Duration

per Incident

Financial Impact

per Incident

(Nos.) (Million kWh) (Hrs) Rs. (Million)

2014-15 10 0.546 1.1 8.2

2015-16 10 0.481 1 6.24

4 K-Electric average sale rate 2015-16 = Rs. 12.97/kWh.

Performance Evaluation Report of NTDC & K-Electric for FY 2015-16 1

N a t i o n a l E l e c t r i c P o w e r R e g u l a t o r y A u t h o r i t y

1 Introduction

This Performance Evaluation Report (PER) provides information on the performance of the

transmission licensees i.e. National Transmission & Despatch Company (NTDC) and K-

Electric (KE) as per National Electric Power Regulatory Authority (NEPRA) Performance

Standards (Transmission) Rules (PSTR) 20055, based on their reported data for the year

2015-16.

Performance trends over the last six years have also been provided. The document, moreover,

takes account of system reliability, security of supply and quality of supply of the

transmission networks of the licensees during the reported period.

1.1 Reporting Requirement

In accordance with Rule 9 of PSTR 2005, the licensee shall submit to the Authority every

year, before the 31st of August of the succeeding year, an Annual Performance Report (APR).

The APR shall contain all relevant information with respect to compliance with these rules

during the year, including a statement of comparison with the compliance reporting achieved

during the preceding year. The reporting guidelines are provided under Rule 10 of PSTR

2005.

1.2 Compliance

In pursuance of Rule 6 of PSTR 2005, the quality of supply shall be measured with reference

to system voltage and system frequency.

1.2.1 Rule 7 of PSTR 2005 (System Voltage)

1) Under normal conditions the voltage variations of plus or minus ±5% of the nominal

voltage for voltages of 132kV (where applicable) and above shall be permitted.

2) Under (N-1) contingency conditions voltage variations of plus or minus ±10% of the

nominal voltage for voltages of the 132kV (where applicable) and above shall be

permitted.

3) The criteria for reporting voltage variations outside the limits specified in sub-rules (2)

and (3) only apply when the duration of variation exceeds a continuous period of thirty

(30) minutes.

1.2.2 Rule 8 of PSTR 2005 (System Frequency)

1) The frequency variations of plus or minus ±1% of the nominal frequency of 50 Hertz shall

be permitted, i.e. frequency to remain within the frequency limits of 49.50 to 50.50 Hertz

at all times.

2) The criteria for reporting frequency variations outside the limits specified in sub-rule (1)

only apply when the duration of the variation exceeds a continuous period of five (5)

minutes.

5 In exercise of the powers conferred by section 46 of the Regulation of Generation, Transmission and Distribution of Electric Power Act,

1997 (XL of 1997), read with clause (c) of sub section (2) of section 7 and section 34 thereof, the National Electric Power Regulatory Authority, with the approval of Federal Government, has made the Performance Standards (Transmission) Rules (PSTR) notified vide

S.R.O. 1138(I)/ 2005 dated 15th November, 2005.

Available at: http://www.nepra.org.pk/Legislation/Rules/Performance%20Standards%20(Transmission)%20Rules%202005.pdf



1.3 Analysis Parameters

The analysis parameters as per PSTR 2005 are given hereunder in table 1.1.

Table 1.1: Analysis Parameters

Reliability (Interruptions) Security (ENS6) Quality of Supply

Duration Frequency Numbers & Duration Voltage Frequency

Total outages hours

recorded at all

interconnection points

(excluding 132 kV line

tripping);

Total number of

interconnection points;

System duration of

interruption (Hrs/point).

Total number of outages

recorded at all 132 kV

outgoing circuits

(excluding 132 kV line

tripping);

Total number of 132 kV

circuits;

System frequency of

interruption (Nos/circuit).

Total Energy Not

Served

(MWh/GWh);

Number of incidents,

where there has been

a loss of supply;

Average Energy Not

Served per incident;

Average duration of

incident;

Financial impact of

ENS.

List of transmission

circuits violating the

prescribed voltage limits;

Total number of violations

under normal conditions;

Total number of violations

under N-1 conditions;

Highest/Lowest voltage

recorded and time duration

under normal conditions;

Highest/Lowest voltage

recorded and time duration

under N-1 conditions.

Month wise

Highest/Lowest

frequency recorded;

Percentage variation of

frequency;

%age of time (hours) of

the year the frequency

remained outside the

limits;

Number of times

frequency remained

outside the limits;

Maximum continuous

period of deviation.

6 ENS: Energy not served



2 Brief about NTDC

National Transmission & Despatch Company (NTDC) Limited was incorporated under the

Companies Ordinance 1984 on November 6, 1998 as a result of structural reforms introduced

by the Government of Pakistan in the Power Sector. The principal business of NTDC is to

own, operate and build infrastructure for transmission system of 500 kV and 220 kV

transmission Lines and associated Sub-stations.

NTDC commenced its commercial operation on March 1st, 1999 and was organized to take

over the properties, assets, rights, obligations and liabilities of Transmission network all over

Pakistan previously owned by Pakistan Water and Power Development Authority (WAPDA),

except the area served by K-Electric.

2.1 Licence

NTDC was granted Transmission Licence No. TL/01/2002 on 31st December 2002 by

NEPRA to engage exclusively in the transmission business for a term of thirty (30) years,

pursuant to Section 17 of the Regulation of Generation, Transmission and Distribution of

Electric Power Act, 1997.

2.2 Transmission Network

NTDC has four regions7 and as of June, 2016, it operates & maintains fourteen (14) 500 kV

and thirty seven (37) 220 kV Grid Stations with 5,253 km of 500 kV and 9,814 km of 220 kV

transmission line. Figure 2.1 shows detail of its region wise 500 kV & 220 kV grid stations.

Figure 2.1: Grid stations detail (NTDC)

7 NTDC Regions: - Islamabad, Lahore, Multan & Hyderabad.



3 Analysis of Annual Performance Report (APR)

The APR submitted by NTDC has been evaluated in light of the PSTR 2005. The detail of

which is as under;

3.1 System Reliability

3.1.1 System Duration of Interruption8

A. Total outages hours recorded at all interconnection points(excluding 132 kV line tripping) B. Total number of interconnection points

Figure 3.1

Figure 3.2

C. System duration of interruption (Hours/point) = A ÷ B

Figure 3.3

Total outages hours and interconnection points9 for NTDC have been increased by 40% and

16% in the year 2015-16 as compared to year 2014-15, shown in figure 3.1 and figure 3.2

respectively. Figure 3.3 indicates that the average duration of interruption per point during

the reported period for NTDC remained 0.46 Hours (27.6 minutes). This shows 21% decline

for NTDC as compared to preceding year.

8 System duration of interruption

= Sum of the total outage hours recorded at all the interconnection points (other than 132kV line trippings) in a period.

Number of monitoring points (Interconnection Point).

See Rule 3 (a) and From-I in Appendix-1 to PSTR 2005

9 See Rule 2 (e) of PSTR 2005: Definition of interconnection point.

47.66

387.63

8.37 0

148

207

0

100

200

300

400

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

193 196 184 197

390

454

0

120

240

360

480

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

0.25

1.98

0.05 0

0.38 0.46

0

0.6

1.2

1.8

2.4

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16



3.1.2 System Frequency of Interruption10

D. Total number of outages hours recorded at all 132 kV outgoing circuits (excluding 132 kV line tripping) E. Total number of 132 kV circuits

Figure 3.4

Figure 3.5

F. System frequency of interruption (No. of outages/circuit) = D ÷ E

Figure 3.6

A reduction of 25% has been observed in total number of outages hours i.e. from 116 to 87,

whereas, the number of 132 kV outgoing circuits have been increased by 16% as compared to

preceding year, shown in figure 3.4 and figure 3.5 respectively. The average number of

interruptions per circuit10

by NTDC is 0.19, shown in figure 3.6 above. This indicates that

NTDC has improved by 37% in year 2015-16 i.e. from 0.3 to 0.19 as compared to year 2014-

15.

3.2 System Security

In order to gauge system security measurements, the estimates of total energy not served

(ENS) during the year as reported by NTDC has been analyzed. The total ENS as reported by

NTDC is 143 Million kWh.

10 System frequency of interruption

= Number of outages at all 132kV outgoing circuits (other than 132kV line trippings) in a period.

Number of Circuits.

See Rule 3 (b) and From-II in Appendix-1 to PSTR 2005

5

17

3 0

116

87

0

35

70

105

140

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

251 254 258 264

390

454

0

120

240

360

480

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

0.02

0.07

0.01 0

0.3

0.19

0

0.08

0.16

0.24

0.32

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16



Based on the energy transportation charges11

of NTDC and average energy sale rate of

CPPA-G12

, the financial impact of 143 Million kWh amounts to approximately Rs. 724

million. Reported ENS for the last six years is given in table 3.1 below:

Table 3.1: Reported ENS

Unit / Year 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

Million kWh 2 0.4 0.1 0 533 143

Number of incidents, where there has been a loss of supply, average ENS per incident,

average duration per incident and financial impact per incident assessed is given in table 3.2

below.

Table 3.2: Loss of supply incidents, average ENS, duration & financial impact per incident


Average ENS

per Incident

Average Duration

per Incident

Financial Impact

per Incident

(Nos.) (Million kWh) (Hrs : Mins) Rs. (Million)

2014-15 125 4.264 01 : 12 42.6

2015-16 87 1.644 02 : 24 8.322

The region wise, month wise and grid station wise breakup of loss of supply incidents has

been shown in the following figures;

Figure 3.7: Region wise loss of supply incidents Figure 3.8: Month wise loss of supply incidents

Figure 3.9: Grid Station wise loss of supply incidents (2015-16)

Note: 500kV: DADU to YOUSAFWALA; 220kV: Bund Road to WAPDA Town; Not under the jurisdiction of NTDC.

11

NTDC tariff determination 2015-16 & 2016-17. 12

CPPA-G Monthly energy procurement reports 2015-16:- Average energy sale rate = Rs. 4.9/kWh.

7

30 38

50

125

10

25 24 28

87

ISLAMABAD LAHORE MULTAN HYDERABAD NTDC

2014-15 2015-16

July Aug Sep Oct Nov Dec Jan Feb Mar Apr May June

2014-15 15 23 5 5 0 12 17 6 12 10 7 13

2015-16 19 9 3 7 9 4 15 3 7 3 4 4

0

6

12

18

24

1

3 3 3

9

2 3

1

3

1

3

1

6

4

1

3 2

1

3

1

6

11

2 1

9

1



Figure 3.9 indicates a little improvement as compared to preceding year. The trend in figure

3.10 reveals that these incidents are more frequent in the month of July and January. NTDC

shall have to take remedial measures to minimize power outages to avoid loss of supply to

consumers and financial loss as well.

3.2.1 System Collapses

As reported, these outages include a partial and a major system collapse also, in the year

2015-16. The detail is given hereunder with a comparison to preceding year 2014-15:

Table 3.3: System collapses detail 2014-15 & 2015-16

S.

No. Date

Loading at

Interruption time

Duration of

Interruption No. of

emanating

132kV circuits Remarks

MW Mins Hrs

1 12-12-2014 NP 464 7.7 327


Tripping of Auto Transformer at

Guddu due to overloading caused

splitting of Northern and Southern

part. Northern part (Guddu to

Peshawar) went under dark due to low

frequency.

2 21-12-2014 NP 647 10.8 90

Network splitting

500kV Guddu - Dadu circuit #

1&2 went under fault due to heavy

fog in Guddu & Dadu area.

Southern part (Dadu – Hub – K-Electric)

went under dark due to low

frequency.

3 06-01-2015 NP 393 6.6 327

Network splitting

System gets splitted due to

tripping of Guddu - Dadu circuits.

4 08-01-2015 NP 585 9.8 327


Northern region from Guddu to

Peshawar collapsed.

5 21-01-2015 NP NP NP NP Partial system collapse

6 24-01-2015 NP 401 6.7 390


Major part of the network from

Peshawar to HUBCO suffered

disturbance.





2015-16

1 15-01-2016 4441 634 10.6 258


Northern Network went under

dark from Sheikh Muhammadi

Peshawar to Multan.

2 21-01-2016 9941 413 6.9 454

Major system collapse

Whole Network went under dark

from Sheikh Muhammadi

Peshawar to NKI Karachi.

NP: Not provided.



It has been observed that the partial and major system collapses and network splitting has

been reduced from 10 to 2 times in the year 2015-16 as compared to preceding year which

indicates that NTDC has shown improvement. However, NTDC shall follow the day-to-day

and long term principles, standards, procedures and guidelines for Planning, Operation,

Dispatch and Connection purposes for normal and abnormal transmission system conditions

to avoid loss of supply to the consumers and hence financial loss to the national economy.

3.3 Quality of Supply

Quality of supply (QoS) is measured with reference to system voltage and system frequency

(see section 1.2.1). The analysis of QoS data as reported by the licensees is given hereunder:

3.3.1 System Voltage

The data pertaining to number of voltage variations violating prescribed limits as submitted

by NTDC was analyzed and it was observed that NTDC has shown 16% improvement in the

year 2015-16 as compared to preceding year. Overall and region wise detail of voltage

variations is as under:

Figure 3.12 shows the trend

over the six years period.

From year 2011-12 to year

2014-15 the number of

voltage variations violating

prescribed limits is trending

up by 43%, 33%, 10% and

11% respectively with

respect to preceding years.

Whereas, in year 2015-16 it

has fallen by 16% as

compared to 2014-15.

Figure 3.10: Number of voltage variations, violating the prescribed limits

2012-13 & 2013-14 figures revised based on latest data submitted by NTDC

Table 3.4: Number of voltage variations, violating the prescribed limits - NTDC

System Condition NTDC Region 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

Normal

Islamabad 14,081 13,413 26,142 21,386 30,165 27,192

Lahore 20,570 44,172 56,937 54,262 68,552 60,285

Multan 702 183 1,663 1,557 1,533 3,453

Hyderabad 17,014 20,754 19,839 41,585 28,958 31,072

Total (Normal) 52,367 78,522 104,581 118,790 129,208 122,002

N-1

Islamabad 4,677 1,788 3,142 2,793 1,914 277

Lahore 1,878 5,980 7,782 11,565 11,684 2,951

Multan ‒ ‒ ‒ 12 ‒ ‒

Hyderabad 5,770 6,241 7,499 1736 6,669 3

Total (N-1) 12,325 14,009 18,423 16,106 20,267 3,231

Total (Normal & N-1) 64,692 92,531 123,004 134,896 149,475 125,233

64,692

92,531

123,004

134,896

149,475

125,233

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16



Figure 3.11: Number of voltage variations, violating the prescribed limits (NTDC region wise)

The gird station wise breakup for each region is given hereunder:

Table 3.5: Number of voltage variations, violating the prescribed limits NTDC Islamabad Region

S.No. Grid Station 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

1 500kV Rawat 611 3,749 7,473 7,242 9,376 5,190

2 500kV Peshawar 1,108 1,521 3,808 335 2,538 3,613

3 220kV Bannu 5,388 473 502 3,381 3,413 2,733

4 220kV Burhan 76 8 30 73 422 1,754

5 220kV Daudkhel 4,725 3,132 6,582 4,968 8,714 9,456

6 220kV ISPR 27 77 13 19 9 36

7 220kV Mardan 4,189 4,535 5,244 5,328 4,653 2,220

8 220kV Shahibagh 2,100 1,288 4,955 2,469 1,991 943

9 220kV University 534 418 677 364 963 1,210

10 Total 18,758 15,201 29,284 24,179 32,079 27,155

Figure 3.12: Number of voltage variations, violating the prescribed limits (NTDC Islamabad Region)

Worst performing grid stations w.r.t. voltage variations outside prescribed limits.

0

50,000

100,000

150,000

Isla

mab

ad

Laho

re

Mul

tan

Hyd

erab

ad

Isla

mab

ad

Laho

re

Mul

tan

Hyd

erab

ad

Nor

mal

N-1

Nor

mal

& N

-1

Normal

N-1

Sub TotalGrandTotal

2010-11

2011-12

2012-13

2013-14

2014-15

2015-16

0

10,000

20,000

30,000

40,0002015-16

2014-15

2013-14

2012-13

2011-12

2010-11



Table 3.6: Number of voltage variations, violating the prescribed limits NTDC Lahore Region

NA: Not applicable; * Date commissioned/energized

S.No. Grid Station 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

1 500kV Gatti 294 416 789 335 1,189 1,285

2 500kV Nokhar – – – – – –

3 500kV Sheikhupura 78 621 125 120 4,837 4,137

4 220kV Bund Road 707 325 3,278 4,592 4,031 3,607

5 220kV Gakkhar 2,946 1,445 1,658 902 997 1,582

6 220kV Jaranwala 70 19 222 303 278 208

7 220kV Kala Shah Kaku 3,995 5,014 8,798 9,120 10,410 20,704

8 220kV Ludewala 1,441 468 642 491 442 303

9 220kV New Kot Lakhpat 6,937 26,528 27,430 24,575 22,707 5,327

10 220kV Nishatabad 148 0 0 0 20 96

11 220kV Ravi 3,192 7,070 13,749 14,693 19,209 7,604

12 220kV Samundri Road – 24 204 556 1,160 2,536

13 220kV Sarfaraznagar 1,317 3,752 3,778 4,572 3,531 5,898

14 220kV Sialkot 1,323 1,533 1,198 1,031 982 1,363

15 220kV Bandala 26-06-2014* NA –

16 220kV Ghazi Road 05-03-2014* 61 –

17 220kV Shalamar 05-03-2014* 1,321 5,165 6,309

18 220kV Toba Tekh Singh 28-06-2015* 241 896

19 220kV WAPDA Town 28-06-2011* 2,937 2,848 3,216 4,976 1,381

20 Total 22,448 50,152 64,719 65,827 80,236 63,236

Figure 3.13: Number of voltage variations, violating the prescribed limits (NTDC Lahore Region)

Worst performing grid stations w.r.t. voltage variations outside prescribed limits.

0

20,000

40,000

60,000

80,000

100,000

120,0002015-16

2014-15

2013-14

2012-13

2011-12

2010-11



Table 3.7: Number of voltage variations, violating the prescribed limits NTDC Multan Region

* Date commissioned/energized

S.No. Grid Station 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

1 500kV Multan 14 1 - 10 20 8

2 500kV Muzaffargarh - - - - - -

3 500kV Yousafwala - - 2 6 351 -

4 220kV Bahawalpur 31 135 15 421 305 506

5 220kV Muzaffargarh 100 1 184 - 4 -

6 220kV Vehari 557 46 1,462 1,132 764 593

7 500kV D.G. Khan *05-08-2014 14 -

8 220kV Kassowal *15-07-2015 - 2,008

9 220kV Okara *30-06-2014 75 338

10 Total 702 183 1,663 1,569 1,533 3,453

Figure 3.14: Number of voltage variations, violating the prescribed limits (NTDC Multan Region)

Worst performing grid station w.r.t. voltage variations outside prescribed limits.

Table 3.8: Number of voltage variations, violating the prescribed limits NTDC Hyderabad Region

* Date commissioned/energized

S.No. Grid Station 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

1 500kV Dadu 112 1,315 1,651 2,864 2,525 835

2 500 kV Guddu - - - 1,584 2,538 5,433

3 500 kV Jamshoro 1,375 673 1,924 890 2,112 1,456

4 500 kV NKI 2,337 3,884 2,738 4,596 5,389 3,188

5 220kV Dharki 50 11 21 - - 24

6 220kV Hala Road 2,624 206 1,086 1,086 162 6

7 220kV Quetta 5,376 6,032 5,872 12,636 12,020 12,106

8 220kV Rohri 15 14 330 182 1,060 1,642

9 220 kV Shikarpur 214 106 202 1,108 572 45

10 220kV Sibbi 10,415 14,302 12,282 16,841 5,841 3,924

11 220 kV T.M. Khan Road 266 452 1,232 1,534 946 374

12 220kV Khuzdar *09-06-2014 & 24-08-2014 1,140 796

13 220kV Loralai *05-08-2014 & 29-08-2014 1,322 1,246

14 Total 18,758 26,995 27,338 43,321 35,627 31,075

0

1250

2500

3750

50002015-16

2014-15

2013-14

2012-13

2011-12

2010-11



Figure 3.15: Number of voltage variations, violating the prescribed limits (NTDC Hyderabad Region)

Worst performing grid station w.r.t. voltage variations outside prescribed limits.

The detailed circuit wise analysis for each region is given at appendix 1 through appendix 4.

Figure 3.16: Prescribed voltage limits as per PSTR 2005 Nominal Voltage

Figure 3.17: Highest voltage recorded at 500 kV grid stations under Normal condition

Note: Break in the graph shows no violation

0

14000

28000

42000

56000

700002015-16

2014-15

2013-14

2012-13

2011-12

2010-11

537

547

536

569

538 542 540 542 537

533 526 542

534 540

638

550 545

525 kV

2014-15 2015-16 Limit

Hig

he

r Li

mit

s Lo

we

r Li

mit

s



Figure 3.18: Highest voltage recorded at 220 kV grid stations under Normal condition


Figure 3.19: Lowest voltage recorded at 220 kV grid stations under Normal condition


243

237

234

235

240

250

240

236 236

234

238

240

242

240

242

240

242 241

238

242

232

241

238 239

235

233

238

248

241 240 240

232

255

250 250

252

250

253

240

231 kV

2014-15 2015-16 Limit

199 205

199 199

182

193

202

189

199

190

188

198

169

190 190

205 202

185

200 199 198 198

180

198 198

204

198 198 190

187

180

202

150

190

178

185

170

193

160

196

200

190

205

206

180

175

208 205

192

209 kV

2014-15 2015-16 Limit



3.3.2 System Frequency

The data as submitted by NTDC was analyzed and revealed that a total of 248 times

frequency remained outside the prescribed limits and that comes out to be approximately

0.43% of the reported period. NTDC has shown improvement as compared to preceding year.

The following table shows details of system frequency data over the reported period.

Table 3.9: NTDC system frequency details

Description / Unit / Year Unit 2014-15 2015-16

Number of times Frequency

remained outside the Limits

In a year 1264 248

Average/month 105 21

Average/day 3.5 0.7

Time duration the Frequency

remained outside the Limits

Days 10.43 1.6

Hours 250.33 37.9

%age of year 2.86 0.43

Maximum Continuous

period of Deviation Hours 2.48 1.5

Minutes 149 89

Table 3.10: NTDC system frequency 2015-16

Month

Number of

days/hours for

a month over a

year

Frequency

recorded

(Hz)

Duration of

variation

Variation

(%)

Number of times

frequency

remained outside

the limits

Days Hours Highest Lowest Minutes Hours Highest Lowest Period Nos.

1 2 3 4 5 6 7 8=(4-50)/50*100 9=(5-50)/50*100 10=4/2*100 11

July 31 744 50.75 49.07 934 15.57 1.50 -1.86 2.09 89

Aug 31 744 50.69 49.15 763 12.72 1.38 -1.70 1.71 83

Sep 30 720 50.69 49.19 240 4.00 1.38 -1.62 0.56 25

Oct 31 744 50.53 49.21 88 1.47 1.06 -1.58 0.20 13

Nov 30 720 50.62 49.22 22 0.37 1.24 -1.56 0.05 3

Dec 31 744 50.71 49.32 103 1.72 1.42 -1.36 0.23 10

Jan 31 744 51.47 45 103 1.72 2.94 -10 0.23 22

Feb 29 696 * * * * * * * *

Mar 31 744 50.64 50.52† 9 0.15 1.28 1.04 0.02 1

Apr 30 720 * * * * * * * *

May 31 744 * * * * * * * *

June 30 720 49.49† 49.35 12 0.20 -1.02 -1.3 0.03 2

Year 366 8784 51.47 45 2274 37.92 2.94 -10 0.43 248

*: Frequency remained within limits †: Cannot be validated

The reasons for the frequency fluctuations as reported by NTDC are short fall in generation,

violation by DISCOs in load drawl, frequency control through operational margin/ and or

emergency (forced) load shedding. It can be noted from the above table that in the month of

July and August, the frequency limits were frequently violated which indicates potential for

the loss of supply incidents as discussed earlier in Section 3.2 (fig 3.8: pg-6).



The figure below shows NTDC month wise reported highest & lowest frequency for the year

2015-16. The dotted red line shows the prescribed limits (50.5 Hz) as per PSTR 2005.

Historical data as reported by NTDC is given at appendix 6.

Figure 3.20: Highest frequency recorded (Hz) Figure 3.21: Lowest frequency recorded (Hz)

49.5

50

50.5

51

51.5

NTDC Limit

43

45

47

49

51

NTDC Limit



4 Findings/Recommendations

i. During analysis it has been noted that 500kV Rawat & NKI Karachi and 220kV

Daudkhel, Mardan, Jaranwala, New Kot Lakhpat, Ravi, Vehari, Quetta and Sibbi are

the worst performing grid stations with respect to voltage violations. This indicates

improper maintenance activities at these particular grid stations. NTDC should

concentrate to utilize its Repair & Maintenance funds in its weak areas.

ii. Due to improper utilization of resources by NTDC, 87 number of loss of supply

incidents were occurred which resulted in a loss of Rs. 724/- millions during the

reported period.

iii. System frequency varied from 45 to 51.47 Hertz, which is a question mark on part of

NTDC as it shows a variation of 10% and 2.94% respectively, whereas, the allowed

limits are ±1% of the nominal frequency of 50 Hertz. This shows poor

implementation of Grid Code.

iv. A major and a partial system collapse have also been reported by NTDC due to which

large part of the country went under dark for 17 hours and 27 minutes. NTDC needs

to improve its functions of planning, operation, protection, augmentation &

expansions and rehabilitation as per requirement of the Grid Code, so that such

collapses may not occur in future.

v. It is the need of time that NTDC shall make network expansions in a way so that it

can meet the upcoming power projects in future and submit the progress report to the

Authority on quarterly basis.

vi. To raise the performance level of the transmission licensees, periodical monitoring of

the licensees shall be carried out.



5 Brief about K-Electric

K-Electric formerly known as Karachi Electric Supply Company was established on

September 13, 1913 under the Indian Companies Act of 1882 as the Karachi Electric Supply

Corporation (KESC). The entity was nationalized in 1952 and re-privatized on November 29,

2005. In September, 2008 it was renamed as Karachi Electric Supply Company (KESC).

Thereafter, it was rebranded as K-Electric.

5.1 Licence

K-Electric was granted transmission licence on 11th

June 2010 by National Electric Power

Regulatory Authority (NEPRA) to engage in the exclusive transmission business for a term

of twenty (20) years, pursuant to section 17 of the Regulation of Generation, Transmission

and Distribution of Electric Power Act, 1997.

5.2 Transmission Network

K-Electric’s transmission system comprises a total of 1,249 km of 220 kV, 132 kV and 66 kV

transmission lines with 64 grid stations, 14 Auto Transformers and 137 power transformers,

as of June 2016. K-Electric grid is interconnected with the NTDC grid system through four

220 kV transmission circuits, namely;

i. KDA-NKI

ii. Baldia-NKI

iii. KDA-Jamshoro-1

iv. KDA-Jamshoro-2



6 Analysis of Annual Performance Report (APR)

The APR submitted by K-Electric has been evaluated in light of the PSTR 2005. The detail of

which is as under;

6.1 System Reliability

6.1.1 System Duration of Interruption13

A. Total outages hours recorded at all interconnection points(excluding 132 kV line tripping) B. Total number of interconnection points

Figure 6.1

Figure 6.2

C. System duration of interruption (Hours/point) = A ÷ B

Figure 6.3

Total number of interconnection points14

for K-Electric remained the same for the last six

years as shown in figure 5.2 above. Figure 5.3 indicates that the average duration of

interruption per point during the reported period for K-Electric is 1.47 Hours (1 hour & 28.2

minutes).

13 System duration of interruption

= Sum of the total outage hours recorded at all the interconnection points (other than 132kV line trippings) in a period.

Number of monitoring points (Interconnection Point).

See Rule 3 (a) and From-I in Appendix-1 to PSTR 2005

14 See Rule 2 (e) of PSTR 2005: Definition of interconnection point.

21

13

19

24.31

11.06 10.32

0

7

14

21

28

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

7 7 7 7 7 7

0

7

14

21

28

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

3

1.86

2.71

3.47

1.58 1.47

0

1

2

3

4

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16



6.1.2 System Frequency of Interruption15

D. Total number of outages hours recorded at all 132 kV outgoing circuits (excluding 132 kV line tripping) E. Total number of 132 kV circuits

Figure 6.4

Figure 6.5

F. System frequency of interruption (No. of outages/circuit) = D ÷ E

Figure 6.6

Total number of 132kV circuits has remained the same for the last six years as shown in

figure 5.5 above. Figure 5.6 shows that the average number of interruptions per circuit10

for

K-Electric is 0.32 during the reported period. This indicates that K-Electric has not shown

any improvement and remained at the same level as compared to year 2014-15.

6.2 System Security

To gauge system security measurements, the estimates of total energy not served (ENS)

during the year as reported by K-Electric has been analyzed. The total ENS as reported by K-

Electric is 4.808 Million kWh. On the basis of average sale rate16

of K-Electric, the financial

impact of 4.808 Million kWh amounts to approximately Rs. 62.4 million. Reported ENS is

given in table 5.1 and figure 5.7 shows the historical trend over the six years period.

15 System frequency of interruption

= Number of outages at all 132kV outgoing circuits (other than 132kV line trippings) in a period.

Number of Circuits.

See Rule 3 (b) and From-II in Appendix-1 to PSTR 2005 16 K-Electric average sale rate 2015-16 = Rs. 12.97/kWh.

12

28

9

12 10 10

0

10

20

30

40

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

31 31 31 31 31 31

0

20

40

60

80

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

0.39

0.9

0.29

0.39

0.32 0.32

0

0.25

0.5

0.75

1

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16



Table 6.1: Reported ENS

Unit / Year 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

Million kWh 1.410 7.393 7.081 6.765 5.459 4.808

Figure 6.7: K-Electric ENS trend (Million kWh)

Number of incidents, where there has been a loss of supply, average ENS, duration and

financial impact per incident assessed is given in table 5.2 below.

Table 6.2: Loss of supply incidents, average ENS, duration & financial impact per incident K-Electric


Average ENS

per Incident

Average Duration

per Incident

Financial Impact

per Incident

(Nos.) (Million kWh) (Hrs : Mins) Rs. (Million)

2014-15 10 0.546 0 : 06 8.2

2015-16 10 0.481 01 : 00 6.24

6.3 Quality of Supply

Quality of supply (QoS) is measured with reference to system voltage and system frequency

(see section 1.2.1). The analysis of QoS data as reported by K-Electric is given hereunder:

6.3.1 System Voltage

The system voltage data as submitted by K-Electric was also analyzed and has revealed that

the number of voltage variations violating criteria has been reduced to 18 as compared to 38

of preceding year. Moreover, K-Electric has provided the duration of variation data for the

first time. The figure shows

voltage variations outside

the prescribed limits, the

dotted line shows the trend

over the six years period. It

is on the rise till year 2013-

14 and after that it follows a

gradual decrease. The

circuit wise detail is given at

appendix 5.

Figure 6.8: No. of voltage variations, violating the prescribed limits

1.41

7.393 7.081

6.765

5.459 4.808

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16

10 12

39

51

38

18

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16



6.3.2 System Frequency

It is pertinent to highlight that K-Electric has submitted first time the data related to ‘duration

of frequency variation’ as required in form-5 of appendix-1 to PSTR 2005 by introducing

SCADA system. However, the detail regarding ‘number of times the frequency remained

outside the limits’ is still missing. The reported data of K-Electric for the year 2015-16 is

given hereunder:

Table 6.3: K-Electric system frequency 2015-16

Month

Number of

days/hours

for a month over

a year

Frequency

recorded

(Hz)

Duration of

variation

(Mins)

Variation w.r.t 50 Hz

(%)

Number of times

frequency

remained outside

the limits

Days Hours Highest Lowest Highest Lowest Highest Lowest Nos. 1 2 3 4 5 6 7 8=(4-50)/50*100 9=(5-50)/50*100 10

July 31 744 50.60 49.40 8 9 1.2 -1.2 NP

Aug 31 744 Nil 49.40 Nil 10 Nil -1.2 NP

Sep 30 720 Nil 49.40 Nil 7 Nil -1.2 NP

Oct 31 744 Nil 49.40 Nil 6 Nil -1.2 NP

Nov 30 720 Nil Nil Nil Nil Nil Nil NP

Dec 31 744 50.60 Nil 14 Nil 1.2 Nil NP

Jan 31 744 50.70 49.40 19 9 1.4 -1.2 NP

Feb 29 696 Nil Nil Nil Nil Nil Nil NP

Mar 31 744 Nil Nil Nil Nil Nil Nil NP

Apr 30 720 Nil Nil Nil Nil Nil Nil NP

May 31 744 50.60 Nil 6 Nil 1.2 Nil NP

June 30 720 Nil 49.40 Nil 6 Nil -1.2 NP

Nil refers to ‘no frequency violation’ NP: Not provided

Frequency variations beyond the prescribed limits ranged from 49.40 Hz to 50.70 Hz. The

figure below shows K-Electric’s month wise reported highest & lowest frequency for the year

2015-16. The dotted red line shows the prescribed limits as per PSTR 2005. Historical data as

reported by K-Electric is given at appendix 6.

Figure 6.9: Highest frequency recorded (Hz) Figure 6.10: Lowest frequency recorded (Hz)

49.5

50

50.5

51

51.5

K-Electric Limit

43

45

47

49

51

K-Electric Limit



7 Findings/Recommendations

i. System duration of interruption during the year 2015-16 remained at around 1.47

Hours (1 hour & 28.2 minutes) which is lower over the previous year by 6.96%.

Similarly, system frequency of interruption remained at the same level as of previous

year i.e. 0.32 number that indicates 0% improvement.

ii. K-Electric contributed a loss of Rs. 62.4/- millions to the national exchequer due to 10

number of loss of supply incidents that occurred during the reported period.

iii. The improvement as claimed by K-Electric pertaining to system reliability is contrary

to the ground realities and needs to improve its reporting mechanism on realistic

basis.

iv. To enhance overall performance, K-Electric needs to improve its functions of

planning, operation, protection, augmentation & expansions and rehabilitation as per

requirement of the Grid Code, to avoid breakdowns and ensure the continuity of

supply to its consumers.



Appendix 1

QoS data - detailed circuit wise analysis

NTDC Islamabad Region

1. 500 kV Rawat................................................................................................................................... 1 of 92. 500 kV Peshawar.............................................................................................................................. 2 of 93. 220 kV Bannu................................................................................................................................... 3 of 94. 220 kV Burhan ................................................................................................................................. 4 of 95. 220 kV Daudkhel ............................................................................................................................. 5 of 96. 220 kV ISPR (Sangjani) ................................................................................................................... 6 of 97. 220 kV Mardan................................................................................................................................. 7 of 98. 220 kV Shahibagh ............................................................................................................................ 8 of 99. 220 kV University ............................................................................................................................ 9 of 9

Islamabad Region1 of 9

Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time

Normal 1 3 19 22 196 83 530 60 530 60 538 60 530 60 537 30 533 60 − − − − − − − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

Normal 1 3 19 22 196 83 530 60 530 60 538 60 530 60 537 30 533 60 − − − − − − − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

Normal 1 3 19 22 148 83 530 60 533 60 538 60 530 60 537 30 533 60 − − − − − − − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

Normal − 935 1850 1794 2211 1245 − − 239 60 241 120 240 60 241 120 240 60 − − − − − − − − − − − −

N-1 − − 4 − − − − − − − 245 60 − − − − − − − − − − − − − − − − − −

Normal 608 935 1850 1794 2206 1198 239 60 − − 241 120 240 60 241 120 240 60 − − − − − − − − − − − −

N-1 − − 4 − − − − − − − 245 60 − − − − − − − − − − − − − − − − − −

Normal − 935 1850 1794 2211 1249 − − − − − − 240 60 241 120 240 60 − − − − − − − − − − − −

N-1 − − 4 − − − − − − − − − − − − − − − − − − − − − − − − − − −

Normal − 935 1850 1794 2208 1249 − − − − 241 120 240 60 241 120 240 60 − − − − − − − − − − − −

2014-15

220 kVRawat - Bahria Town

Ckt I & II

2010-11 2011-12 2012-13 2013-142013-14 2015-16 2010-11 2011-12 2012-13

220 kVRawat - University

Ckt I & II

500 kVRawat - Barotha

Ckt I & II500 kV

Rawat - GakkharCkt I & II

500 kVRawat - Tarbela

220 kVRawat - ISPR

Ckt I & II220 kV

Rawat - ManglaCkt I & II

2014-152014-15

NTDC Islamabad Region1. 500kV Grid Station RAWAT

Condition

Name ofTransmission

Circuit(s) violating thevoltage criteria

Total Number / Timesviolating the limit

Highest Voltage Recorded (kV) / Time (Min) Lowest Voltage Recorded (kV) / Time (Min)

2010-11 2011-12 2012-132015-16

2013-14 2015-16

500 kV Grid Station RawatPerformance Evaluation Report for the year 2015-16

Normal − 935 1850 1794 2208 1249 − − − − 241 120 240 60 241 120 240 60 − − − − − − − − − − − −

N-1 − − 4 − − − − − − − 245 60 − − − − − − − − − − − − − − − − − −

611 3,749 7,457 7,242 9,376 5,190– – 16 – ‒ ‒

611 3,749 7,473 7,242 9,376 5,190

H 550 kV H 242 kV

525 kV H 231 kV H

475 kV L 209 kV L

L 450 kV L 198 kVH: HighestL: Lowest

Total No. of Variations (Normal)Total No. of Variations (N-1)

Highest Voltage Under Normal Condition

Total of Normal & N-1

220 kVRawat - University

Ckt I & II

Permissible Voltage Limits Under Normal & N-1 System Conditionsas per Peformance Standards (Transmission) Rules 2005

500 kV N-1Normal 220 kV N-1Normal

500 kV Grid Station RawatPerformance Evaluation Report for the year 2015-16



Normal − 5 12 1 − − − − 531 60 526 60 − − 470 60 − − − −

N-1 − − − − − − − − − − ‒ ‒ − − − − − − − −

Normal 352 607 1337 116 818 1211 240 60 241 60 241 120 235 60 240 60 239 60 198 240 198 120 199 60 200 180 200 60 200 60

N-1 104 10 27 5 95 − − − − − 246 60 − − − − − − 178 60 180 120 174 60 190 60 180 60 ‒ ‒

Normal 162 445 1271 89 711 1190 238 60 240 60 241 120 238 60 241 60 239 60 198 60 198 60 199 60 200 60 − − 200 60

N-1 197 12 30 6 2 − − − − − 246 60 − − 243 60 − − 176 60 180 120 172 60 190 120 195 60 ‒ ‒

Normal 168 425 1105 114 817 1211 237 180 239 60 241 60 235 60 240 60 239 60 198 120 198 120 200 60 200 60 200 60 200 60

N-1 125 17 26 5 95 − − − − − 245 60 − − − − − − 176 60 179 120 23 60 190 60 180 60 ‒ ‒NP: Not Provided

682 1,482 3,725 319 2,346 3,613426 39 83 16 192 ‒

1,108 1,521 3,808 335 2,538 3,613

2012-13 2015-16

500 kVTarbela - Peshawar

NP

2014-152014-152012-13 2013-14 2014-15

NP

2013-14

NP

Lowest Voltage Under Normal Condition

NTDC Islamabad Region2. 500kV Grid Station SHEIKH MUHAMMADI PESHAWAR

Condition

Name ofTransmission Circuit(s)violating the voltage

criteria



2010-11 2011-12 2012-132010-11 2011-12

2015-162010-11 2011-12

Permissible Voltage Limits Under Normal & N-1 System Conditions

220 kVPeshawar - Shahibagh



220 kVPeshawar - Daudkhel

Ckt I & II


220 kVBarotha - Peshawar

2015-162013-14

500 kV Grid Station Sheikh Muhammadi PeshawarPerformance Evaluation Report for the year 2015-16

H 550 kV H 242 kV

525 kV H 231 kV H

475 kV L 209 kV L




500 kV Grid Station Sheikh Muhammadi PeshawarPerformance Evaluation Report for the year 2015-16



Normal 3528 366 348 1755 2424 2652 240 60 243 60 241 600 242 60 241 60 241 60 298 60 260 300 298 60 195 60 199 60 198 60

N-1 1860 107 154 1626 989 81 199 60 250 60 250 180 248 60 243 60 − − 155 60 178 540 180 900 172 60 170 60 180 60

3,528 366 348 1,755 2,424 2,6521,860 107 154 1,626 989 815,388 473 502 3,381 3,413 2,733

H 242 kV

231 kV H

NTDC Islamabad Region3. 220kV Grid Station BANNU

Condition

Name ofTransmission

Circuit(s) violatingthe voltage criteria



2010-11 2011-12 2012-132011-12 2012-13 2013-14 2015-16

2014-152014-15 2014-15

220 kVDaudkhel - Bannu

Ckt I & II

2015-162015-16 2010-112010-11 2011-12 2012-13

2013-142013-14


Lowest Voltage Under Normal ConditionTotal No. of Variations (Normal)Total No. of Variations (N-1)

Lowest Voltage Under (N-1) ConditionTotal of Normal & N-1


220 kV N-1Normal

220 kV Grid Station BannuPerformance Evaluation Report for the year 2015-16

209 kV L

L 198 kVH: HighestL: Lowest

220 kV N-1Normal

220 kV Grid Station BannuPerformance Evaluation Report for the year 2015-16



Normal 38 4 30 38 211 877 − − − − 240 60 236 60 237 60 238 60 202 180 203 60 204 60 − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

Normal 38 4 35 211 877 − − − − 236 60 237 60 238 60 202 180 203 60 − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − −

NP : Not Provided

76 8 30 73 422 1,754– – – – – –

76 8 30 73 422 1,754



2013-14

NPNP

2011-122013-142012-13 2014-15

2015-16 2010-11


2014-15 2014-15

Name ofTransmission


NP

2010-11 2011-12

220 kVBurhan - ISPR

Ckt I & II220 kV

Burhan - TarbelaCkt I, II & III

*Ckt III reported in2015-16

as per Peformance Standards (Transmission) Rules 2005Permissible Voltage Limits Under Normal & N-1 System Conditions

2015-16

NTDC Islamabad Region4. 220kV Grid Station BURHAN



2015-162010-11 2011-12 2012-13 2013-14 2012-13

Condition

220 kV Grid Station BurhanPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station BurhanPerformance Evaluation Report for the year 2015-16



Normal 1412 923 2176 1569 3445 3099 244 60 242 60 240 60 241 60 242 60 242 240 198 120 198 120 202 60 200 120 198 60 198 60

N-1 323 121 92 87 59 53 248 60 243 60 244 60 246 60 248 60 248 60 171 60 175 60 − − 184 60 186 60 190 60

Normal 1097 898 1834 1569 1664 3099 244 60 242 60 241 180 241 60 242 60 242 240 198 120 198 120 199 60 200 120 198 60 198 60

N-1 162 143 91 87 47 53 248 60 244 60 250 60 246 60 248 60 248 60 171 60 175 60 184 60 184 60 186 60 190 60

Normal 1412 926 2294 1569 3440 3099 248 60 242 60 241 180 241 60 237 60 242 240 198 120 198 120 199 60 200 120 198 60 198 60

N-1 319 121 95 87 59 53 246 60 244 60 250 60 246 60 248 60 248 60 171 60 175 60 184 60 184 60 186 60 190 60

3,921 2,747 6,304 4,707 8,549 9,297804 385 278 261 165 159

4,725 3,132 6,582 4,968 8,714 9,456

Highest Voltage Under Normal Condition Lowest Voltage Under Normal Condition

Lowest Voltage Under (N-1) ConditionHighest Voltage Under (N-1) Condition

2010-112015-16 2015-162014-15



2013-14 2015-16

220 kVDaudkhel - Chashma

Ckt I & II220 kV

Daudkhel - BannuCkt I & II

220 kVDaudkhel - Peshawar

Ckt I & II

2014-152010-11 2011-12 2012-13 2013-14 2014-15


NTDC Islamabad Region5. 220kV Grid Station DAUDKHEL

Condition


criteria



2010-11 2011-12 2012-132011-12 2012-13 2013-14

220 kV Grid Station DaudkhelPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station DaudkhelPerformance Evaluation Report for the year 2015-16



Normal − − 2 1 3 − − − − 233 120 232 120 232 120 − − − − − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − −

Normal 8 _ 1 1 2 13 − − − − 231 60 232 60 232 150 232 300 202 420 − − 205 120 − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

Normal 13 21 4 6 − 5 − − − − − − − − − − − − 202 240 204 120 201 480 205 60 209 60 204 120

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

Normal − 14 3 6 2 5 − − − − − − − − 232 60 232 360 − − 204 120 200 180 205 180 205 180 205 120

N-1 − 14 0 − − − − − − − − − − − − − − − − − 204 120 − − − − − − − −

Normal 6 14 3 5 2 5 − − − − − − − − 232 60 232 360 202 60 204 120 200 180 205 180 205 180 205 120

N-1 − 14 0 − − − − − − − − − − − − − − − − − 204 120 − − − − − − − −

Normal 4 232 240 206 60

N-1 − − − − −

Normal 4 232 240 206 60

† Reported earlier asISPR - Mansehra Ckt I

Did not report

NTDC Islamabad Region6. 220kV Grid Station ISPR (SANGJANI)

Condition

Name ofTransmission




2010-11 2011-12 2012-132015-16

2013-14 2015-162014-15 2012-13 2013-14 2014-15

220 kVISPR - Burhan

2015-16 2010-11 2011-12

†

220 kVISPR - Tarbela

220 kVISPR - Bahria Town

2013-142014-15

2010-11 2011-12 2012-13

† †220 kV

ISPR - Mansehra Ckt I

220 kVISPR - Rawat

220 kVISPR - Allai Khwar

Ckt I220 kV

ISPR - Allai KhwarCkt II


Did not report


Did not report

220 kV Grid Station ISPR (Sangjani)Performance Evaluation Report for the year 2015-16

N-1 − − − − −

Normal 4 232 240 206 60

N-1 − − − − −

27 49 13 19 9 36– 28 – – – –

27 77 13 19 9 36

H 242 kV

231 kV H

209 kV L



Did not report






220 kVISPR - Allai Khwar

Ckt I220 kV

ISPR - Allai KhwarCkt II


Did not report


Did not report

220 kV N-1Normal

220 kV Grid Station ISPR (Sangjani)Performance Evaluation Report for the year 2015-16



Normal 3451 3401 1925 1600 1356 740 − − 290 60 − − − − − − − − 192 60 188 120 199 240 200 540 199 120 198 180

N-1 738 1134 1267 176 139 − − − − − − − − − − − − − 182 60 170 60 170 120 182 60 180 240 − −

Normal − − 899 1600 1358 740 − − − − − − − − − − − − − − − − − − 200 540 199 120 198 180

N-1 − − 128 176 137 − − − − − − − − − − − − − − − − − − − 182 60 180 240 − −

Normal − − 896 1600 1520 740 − − − − − − − − − − − − − − − − − − 200 540 199 60 198 180

N-1 − − 129 176 143 − − − − − − − − − − − − − − − − − − − 182 60 181 60 − −

3,451 3,401 3,720 4,800 4,234 2,220738 1,134 1,524 528 419 −

4,189 4,535 5,244 5,328 4,653 2,220

2013-14 2014-152013-142010-112013-14 2014-15 2015-16

2015-162010-11

220 kVTarbela - Mardan Ckt

I & II




220 kVMardan - Shahibagh

Ckt I & II

220 kVMardan - Barotha Ckt

I & II

2014-15

NTDC Islamabad Region7. 220kV Grid Station MARDAN

Condition

Name ofTransmission




2010-11 2011-12 2012-132011-12 2012-132011-12 2012-13 2015-16

220 kV Grid Station MardanPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station MardanPerformance Evaluation Report for the year 2015-16



Normal 335 571 40 241 60 242 60 241 180 200 300 199 60 199 60

N-1 57 7 5 − − − − 248 60 181 60 190 60 180 60

Normal 458 311 968 − − − − − − 200 180 199 60 199 300

N-1 396 44 341 − − − − − − 180 240 185 60 178 60

Normal 458 311 968 1331 1637 777 − − − − − − − − − − − − 200 180 199 60 199 300 200 420 199 60 198 60

N-1 396 44 341 130 52 − − − − − − − − − − − − − 180 240 185 60 178 60 170 120 181 60

Normal 946 395 206 166 − − 238 240 − − 235 120 − − − − 199 60 198 60

N-1 200 109 96 − − − − − − − − − − − 175 60 180 60 − −

Normal 946 395 − − 238 240 − − − −

N-1 200 109 − − − − − − 175 60NP: Not Provided

1,251 1,193 3,868 2,121 1,843 943849 95 1,087 348 148 ‒

NTDC Islamabad Region8. 220kV Grid Station NEW SHAHIBAGH PESHAWAR

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14 2015-162013-14 2010-112011-12 2012-13

NP NP

2014-15

†220 kV

Shahibagh - Barotha

220 kVShahibagh - Peshawar

Ckt I

220 kVShahibagh - Mardan

Ckt I

2010-11

220 kVShahibagh - Peshawar

Ckt II

2014-152014-15

NP

2012-13

† †

2013-14

NP

2015-16 2011-12

NP



NP220 kV

Shahibagh - MardanCkt II


† †

†† †† ††

†

220 kV Grid Station Shahibagh PeshawarPerformance Evaluation Report for the year 2015-16

849 95 1,087 348 148 ‒2,100 1,288 4,955 2,469 1,991 943

†

H 242 kV

231 kV H

209 kV L



Total No. of Variations (N-1)Total of Normal & N-1

220 kV Shahibagh-Barotha at tower (Loc # 260 -261) bundled with Peshawar-Shahibagh-I at tower (Loc# 119-120) circuit, due to that reason 220 kV Shahibagh-Barotha & Peshawar-Shahibagh-I readings aremissing in year 2013-14 and onwards.

†† Shihibagh-Mardan circuit -II does not exist

220 kV N-1Normal

220 kV Grid Station Shahibagh PeshawarPerformance Evaluation Report for the year 2015-16



Normal 534 418 676 362 962 1210 240 60 240 60 241 60 240 60 241 60 241 60 − − − − − − 232 120 − − − −

N-1 − − 1 2 1 − − − − − 245 60 242 60 243 60 − − − − − − − − − − − − − −

534 418 676 362 962 1,210− − 1 2 1 −534 418 677 364 963 1,210

H 242 kV

231 kV H

NTDC Islamabad Region9. 220kV Grid Station UNIVERSITY

Condition

Name ofTransmission




2010-11 2011-12 2012-132011-12 2012-13 2013-14 2015-162014-152010-112015-162010-11 2011-12 2012-13 2013-14



2014-152014-15

2013-14

220 kVUniversity - Rawat

Ckt I & II


2015-16


220 kV Grid Station UniversityPerformance Evaluation Report for the year 2015-16

209 kV L


220 kV N-1Normal

220 kV Grid Station UniversityPerformance Evaluation Report for the year 2015-16

Performance Evaluation Report of NTDC & K-Electric for FY 2015-16


Appendix 2


NTDC Lahore Region

1. 500 kV Gatti ................................................................................................................................... 1 of 192. 500 kV Nokhar ............................................................................................................................... 2 of 193. 500 kV Sheikhupura....................................................................................................................... 3 of 194. 220 kV Bandala.............................................................................................................................. 4 of 195. 220 kV Bund Road......................................................................................................................... 5 of 196. 220 kV Gakkhar ............................................................................................................................. 6 of 197. 220 kV Ghazi Road ........................................................................................................................ 7 of 198. 220 kV Jaranwala ........................................................................................................................... 8 of 199. 220 kV Kala Shah Kaku................................................................................................................. 9 of 1910. 220 kV Ludewala ......................................................................................................................... 10 of 1911. 220 kV Nishatabad ....................................................................................................................... 11 of 1912. 220 kV New Kot Lakhpat ............................................................................................................ 12 of 1913. 220 kV New Shalamar ................................................................................................................. 13 of 1914. 220 kV Ravi ................................................................................................................................. 14 of 1915. 220 kV Samundri Road ................................................................................................................ 15 of 1916. 220 kV Sarfaraznagar ................................................................................................................... 16 of 1917. 220 kV Sialkot.............................................................................................................................. 17 of 1918. 220 kV Toba Tek Singh ............................................................................................................... 18 of 1919. 220 kV WAPDA Town ................................................................................................................ 19 of 19

Lahore Region1 of 19

Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time VoltageTime Voltage Time

Normal ‒ ‒ 3 ‒ ‒ ‒ ‒ ‒ 530 120 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 2 1 12 4 2 530 90 530 90 535 60 530 90 528 60 _ _ _ _ _ _ _ _ _ _

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 180 286 169 140 358 679 540 300 542 120 540 120 535 90 545 60 542 90 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 30 22 83 17 137 154 540 90 540 60 540 120 538 60 540 60 540 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 58 88 447 155 621 310 540 300 540 90 545 60 540 300 547 60 540 90 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 24 19 75 19 71 142 538 360 540 60 540 60 532 90 540 60 538 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

NTDC Lahore Region1. 500kV Grid Station GATTI FAISALABAD

Condition

Name ofTransmission




2010-11 2011-12 2012-132015-16

2013-14 2015-162010-11 2013-142012-13 2014-15

NPNA

NA

2011-12 2012-13 2013-14 2015-16 2010-11 2011-12

Note: No violation at 220 kV Circuits

2014-15

NP

2014-15

NA NANP

500 kVGatti - Multan

500 kVGatti - Lahore

500 kVGatti - Muzaffargarh

500 kVGatti - Rousch

500 kVGatti - Barotha

Ckt I500 kV

Gatti - BarothaCkt II

NA NA

500 kV Grid Station GattiPerformance Evaluation Report for the year 2015-16

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

NP: Not Provided

294 416 789 335 1,189 1,285– – – – – –

294 416 789 335 1,189 1,285

H 550 kV H 242 kV

525 kV H 231 kV H

475 kV L 209 kV L



Note: No violation at 220 kV Circuits



500 kVGatti - Lahore



500 kV Grid Station GattiPerformance Evaluation Report for the year 2015-16



Normal

N-1

Normal

N-1

Normal

N-1

Normal

N-1

Normal

N-1

Normal

N-1

Total No. of Variations (Normal)

500 kVGakkhar - Rawat 1

500 kVGakkhar - Rawat 2

500 kVGakkhar - Lahore 1

Not applicable

Not applicable

Not applicable

220 kVNokhar - Gakkhar

2015-16 2010-11

500 kVGakkhar - Lahore 2

220 kVNokhar - Mangla

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

2011-12 2012-13

NTDC Lahore Region2. 500kV Grid Station NOKHAR

Condition

Name ofTransmission




2010-11 2011-12 2012-132013-14 2015-16

2013-14 2015-162010-11 2011-12

2014-152014-152014-15

Not applicable

2012-13 2013-14

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

500 kV Grid Station NokharPerformance Evaluation Report for the year 2015-16

H 550 kV H 242 kV

525 kV H 231 kV H

475 kV L 209 kV L





Not applicable

Not applicable


500 kV Grid Station NokharPerformance Evaluation Report for the year 2015-16



Normal ‒ 2 ‒ ‒ 129 24 ‒ ‒ 530 30 ‒ ‒ ‒ ‒ 536 60 534 30 ‒ ‒ 472 30 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ 2 ‒ ‒ 129 24 ‒ ‒ 530 30 ‒ ‒ ‒ ‒ 536 60 534 30 ‒ ‒ 472 30 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ 2 ‒ ‒ 129 24 ‒ ‒ 530 30 ‒ ‒ ‒ ‒ 536 60 534 30 ‒ ‒ 472 30 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 25 23 887 813 − − − − ‒ ‒ ‒ ‒ 198 120 200 90 198 30 193 30

N-1 ‒ 1 3 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 197 90 195 60 ‒ ‒

Normal 26 205 25 23 887 813 237 1020 236 30 233 60 ‒ ‒ ‒ ‒ ‒ ‒ 205 480 198 30 198 120 200 90 198 30 193 30

N-1 ‒ ‒ ‒ 1 3 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 197 90 195 60 ‒ ‒

Normal 26 205 25 23 887 813 237 1020 236 30 233 60 ‒ ‒ ‒ ‒ ‒ ‒ 205 480 198 30 198 120 200 90 198 30 193 30

N-1 ‒ ‒ ‒ 1 3 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 197 90 195 60 ‒ ‒

Normal 26 205 25 23 887 813 237 1020 236 30 233 60 _ _ _ _ ‒ ‒ 205 480 198 30 198 120 200 90 198 30 193 30

Commissioned/Energized

on28-06-2011

Commissioned

/Energizedon

28-06-2011

Commissioned/Energized

on28-06-2011

220 kVSheikhupura - Ravi

Ckt I & II

NP

NTDC Lahore Region3. 500kV Grid Station SHEIKHUPURA

Condition


criteria



2010-11 2011-12 2012-132010-11 2011-12 2012-132010-11 2013-14

500 kVSheikhupura - Yousafwala

2014-15 2015-162015-16

500 kVSheikhupura - Gatti

500 kVSheikhupora - Nokhar

Ckt I & II

220 kVSheikhupura - WTN

220 kVSheikhupura - NKLP

Ckt I & II220 kV

Sheikhupura - Bund RoadCkt I, II, III & IV

2014-152013-14 2015-16

2013-142011-12 2012-132014-15

NP NP

500 kV Grid Station SheikhupuraPerformance Evaluation Report for the year 2015-16

Normal 26 205 25 23 887 813 237 1020 236 30 233 60 _ _ _ _ ‒ ‒ 205 480 198 30 198 120 200 90 198 30 193 30

N-1 ‒ ‒ ‒ 1 3 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 197 90 195 60 ‒ ‒

Normal 25 23 887 813 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 120 200 90 198 30 193 30

N-1 ‒ 1 3 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 197 90 195 60 ‒ ‒NP: Not Provided

78 621 125 115 4,822 4,137– – – 5 15 –

78 621 75 120 4,837 4,137

L 475 kV 525 kV H L 209 kV 231 kV H450 kV L H 550 kV 198 kV L H 242 kV

H: HighestL : Lowest


P/H: Power House


WTN: WAPDA Town NKLP: New Kot Lakhpat

220 kVSheikhupura - Ravi

Ckt I & II

220 kVSheikhupura - ATLAS P/H

Lowest Voltage Under Normal ConditionTotal No. of Variations (Normal)

NP

as per Performance Standards (Transmission) Rules 2005Permissible Voltage Limits Under Normal & N-1 System Conditions

NP NP

500 kV

Normal

N-1

220 kV

Normal

N-1

500 kV Grid Station SheikhupuraPerformance Evaluation Report for the year 2015-16



Normal

N-1

Normal

N-1

Normal

N-1

Normal

N-1NA: Not Applicable


Commissioned/Energized on26-06-2014


KSK: Kala Shah Kaku

NA

220 kVBandala - KSK 1

220 kVBandala - KSK 2




NTDC Lahore Region4. 220kV Grid Station BANDALA


Highest Voltage Recorded (kV) / Time (Min) Lowest Voltage Recorded (kV) / Time (Min)Condition

2015-16 2010-11 2011-122013-14

Name ofTransmission

Circuit(s) violating thevoltage criteria 2010-11 2011-12 2012-13

2014-152013-142014-15

2014-15 2015-162015-16

2010-11 2011-12 2012-13 2013-14 2012-13

NA

NA

NA

NA

NA



220 kVBandala - Gatti 1

220 kVBandala - Gatti 2





NA

NA

NA

NA

NA

NA

NA

NA





220 kV Grid Station BandalaPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L



220 kV N-1Normal

220 kV Grid Station BandalaPerformance Evaluation Report for the year 2015-16



Normal 707 325 3228 4438 3844 3598 242 90 234 30 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 203 60 196 60 196 60 195 150 182 30 190 60

N-1 ‒ ‒ 50 154 187 9 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 195 90 195 120 191 60 190 ‒

707 325 3,228 4,438 3,844 3,598– – 50 154 187 9

707 325 3,278 4,592 4,031 3,607

H 242 kV

231 kV H

220 kVBus Bar No. 1 & 2



2013-142013-14

2013-142014-15


2015-162015-16 2010-11 2014-152015-16

2010-11 2011-12 2012-13 2014-15


Lowest Voltage Under N-1 Condition

NTDC Lahore Region5. 220kV Grid Station BUND ROAD LAHORE

Condition

Name ofTransmission




2010-11 2011-12 2012-132011-12 2012-13

220 kV N-1Normal

220 kV Grid Station Bund RoadPerformance Review Report for the year 2015-16

209 kV L


220 kV N-1Normal

220 kV Grid Station Bund RoadPerformance Review Report for the year 2015-16



Normal 649 357 393 148 183 791 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 190 60 198 180 199 60 204 280 198 60 187 60

N-1 166 28 7 25 6 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 176 60 182 30 193 60 185 60 193 60 ‒ ‒

Normal 514 266 390 224 288 ‒ ‒ ‒ ‒ 260 120 280 60 ‒ ‒ 198 180 198 360 107 120 198 120 198 60

N-1 159 70 39 52 24 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 172 30 85 120 182 30 186 60 190 60

Normal 294 294 60 191 30

N-1 135 ‒ ‒ 172 30

Normal 628 358 390 148 182 791 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 120 191 60 199 60 198 60 193 60 187 60

N-1 159 30 9 25 5 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 176 60 182 30 193 60 185 60 190 60 ‒ ‒

Normal ‒ ‒ 391 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 107 120 ‒ ‒

N-1 ‒ ‒ 39 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 182 30 ‒ ‒

Normal 218 266 226 285 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 180 198 360 198 120 198 60

N-1 24 70 54 24 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 190 60 85 120 186 60 190 60NP: Not Provided NA: Not Applicable

NPNP NP

NP NP

NP NP NP

NA220 kV

Old Gakkhar - New GakkharNA

NTDC Lahore Region6. 220kV Grid Station GAKKHAR

ConditionName of

Transmission Circuit(s)violating the voltage criteria



2010-11 2011-12 2012-132013-14 2015-162015-16

220 kVGakkhar - Mangla

Ckt II

2011-12 2012-13 2013-142013-14 2015-16

2010-112014-15

NP

NP

2014-152011-12 2012-132010-112014-15

NA


Ckt III

220 kVGakkhar - Sialkot

220 kVGakkhar - Nokhar

NP NP


Ckt I

220 kV Grid Station GakkharPerformance Evaluation Report for the year 2015-16

NP: Not Provided NA: Not Applicable

2,303 1,247 1,564 746 938 1,582643 198 94 156 59 ‒

2,946 1,445 1,658 902 997 1,582




220 kV N-1Normal

220 kV Grid Station GakkharPerformance Evaluation Report for the year 2015-16



Normal 61 ‒ ‒ 202 30

N-1 ‒ ‒ ‒ ‒ ‒NA: Not Applicable

61 NA– NA

61 NA

H 242 kV

231 kV H

Comm./Energized in 2014-15

Total of Normal & N-1 Comm./Energized in 2014-15

2014-152014-15

NA220 kV

KSK - Shalamar Via Ghazi

2012-13 2015-162013-14

NTDC Lahore Region7. 220kV Grid Station GHAZI ROAD LAHORE

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-142013-14 2014-15


2010-11 2011-12

Comm./Energized Mar 2014 Comm./Energized Mar 2014 Comm./Energized Mar 2014


NA NA

2012-132015-16

2010-11 2011-12

220 kV Grid Station Ghazi RoadPerformance Evaluation Report for the year 2015-16

209 kV L


220 kV N-1Normal

220 kV Grid Station Ghazi RoadPerformance Evaluation Report for the year 2015-16



Normal 70 19 222 303 278 208 235 90 236 45 240 40 237 60 238 34 238 40 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

70 19 222 303 278 208– – – – – –

70 19 222 303 278 208

H 242 kV

231 kV H



2013-14


2015-16 2015-162013-14 2015-16

220 kVJaranwala - Gatti

Ckt I & II

2010-112010-11 2011-12 2012-13 2013-142014-15

2014-15


2014-15

NTDC Lahore Region8. 220kV Grid Station JARANWALA ROAD FAISALABAD

Condition

Name ofTransmission




2010-11 2011-12 2012-132011-12 2012-13

220 kV Grid Station JaranwalaPerformance Evaluation Report for the year 2015-16

209 kV L


220 kV N-1Normal

220 kV Grid Station JaranwalaPerformance Evaluation Report for the year 2015-16



Normal 836 678 2041 2040 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 196 60 198 120 198 120 198 120

N-1 42 45 17 19 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 193 120 188 60 194 60 194 60

Normal 541 1195 1634 1632 1048 2940 232 30 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 197 60 198 150 198 60 197 60 196 60 184 60

N-1 10 43 7 6 46 17 232 30 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 196 30 182 30 193 60 193 60 187 60 188 90

Normal 465 1336 1536 1535 1287 3425 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 196 30 198 150 198 180 198 60 189 60 180 60

N-1 14 51 6 6 78 48 232 120 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 196 120 188 120 195 60 195 60 190 60 188 90

Normal 1113 437 1809 1819 1752 3592 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 150 198 120 198 180 198 420 195 60 180 60

N-1 154 23 116 117 288 53 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 190 90 182 30 188 60 190 240 188 60 187 90

Normal 787 1140 1592 1830 1809 3563 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 90 198 120 196 90 195 60 198 210 182 60

N-1 33 66 40 116 172 58 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 192 30 188 120 192 60 190 60 184 60 189 60

Normal 1731 3442 ‒ ‒ ‒ ‒ 197 60 180 60

N-1 294 56 ‒ ‒ ‒ ‒ 188 60 187 90

Normal 1786 3456 ‒ ‒ ‒ ‒ 190 60 183 60

NP NP NP

220 kVKala Shah Kaku - Bandala

Ckt I & IIComm./Energized June 2014

2014-15

NTDC Lahore Region9. 220kV Grid Station KALA SHAH KAKU

ConditionName of




2010-11 2011-12 2012-132013-14 2015-16

2013-14 2015-162010-11 2014-15 2014-152011-12 2015-16 2010-11 2011-12 2012-132012-13 2013-14

Comm./Energized Mar 2014 Comm./Energized Mar 2014

Comm./Energized June 2014

220 kVKala Shah Kaku - Shalamar


220 kVKala Shah Kaku - Gatti

Ckt I & II220 kV

Kala Shah Kaku - ManglaCkt I, II & III

220 kVKala Shah Kaku - Bund Road

Ckt I & II220 kV

Kala Shah Kaku - RaviCkt I & II

220 kVKala Shah Kaku - Sialkot

Comm./Energized Mar 2014

220 kV Grid Station Kala Shah KakuPerformance Evaluation Report for the year 2015-16

Normal 1786 3456 ‒ ‒ ‒ ‒ 190 60 183 60

N-1 119 54 ‒ ‒ ‒ ‒ 185 60 189 60NP: Not Provided

3,742 4,786 8,612 8,856 9,413 20,418253 228 186 264 997 286

3,995 5,014 8,798 9,120 10,410 20,704

H 242 kV

231 kV H

209 kV L



220 kVKala Shah Kaku - Bandala

Ckt I & II

Total No. of Variations - NormalTotal No. of Variations - N-1



Comm./Energized June 2014Comm./Energized June 2014



220 kV N-1Normal

220 kV Grid Station Kala Shah KakuPerformance Evaluation Report for the year 2015-16



Normal 1214 414 639 435 351 258 234 30 233 90 242 210 244 60 239 90 239 270 190 60 198 90 150 150 208 60 208 150 207 150

N-1 227 54 3 4 ‒ ‒ ‒ ‒ ‒ ‒ 248 90 ‒ ‒ ‒ ‒ ‒ ‒ 175 30 186 60 190 60 ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ 52 91 45 ‒ ‒ ‒ ‒ ‒ ‒ 237 150 238 120 238 270 ‒ ‒ ‒ ‒ ‒ ‒ 202 60 199 60 202 60

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

1,214 414 639 487 442 303227 54 3 4 – –

1441 468 642 491 442 303

H 242 kV

220 kVChashma - Ludewala

Ckt I & II

220 kVGatti - Ludewala

Ckt I & II


NTDC Lahore Region10. 220kV Grid Station LUDEWALA

Condition


criteria



2010-11 2011-12 2012-132011-12 2012-13 2013-142011-12 2012-13 2013-14 2015-162014-15

2013-14 2015-162015-16 2010-112010-11

2014-152014-15



Lowest Voltage Under N-1 ConditionTotal of Normal & N-1

220 kV Grid Station LudewalaPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station LudewalaPerformance Evaluation Report for the year 2015-16



Normal 37 ‒ ‒ ‒ 5 24 235 120 ‒ ‒ ‒ ‒ ‒ ‒ 234 90 235 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 37 ‒ ‒ ‒ 5 24 235 120 ‒ ‒ ‒ ‒ ‒ ‒ 234 90 235 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 37 ‒ ‒ ‒ 5 24 235 120 ‒ ‒ ‒ ‒ ‒ ‒ 234 90 235 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 37 ‒ ‒ ‒ 5 24 235 120 ‒ ‒ ‒ ‒ ‒ ‒ 234 90 235 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

148 – – – 20 96– – – – – –

148 – – – 20 96

Highest Voltage Under Normal ConditionTotal No. of Variations (Normal)Total No. of Variations (N-1)


220 kVNishatabad - Gatti

Ckt II220 kV

Nishatabad - Samundri RoadCkt I

220 kVNishatabad - Gatti

Ckt I


2012-13

220 kVNishatabad - Samundri Road

Ckt II

2013-14 2015-16 2010-11 2011-122014-15

2014-152012-132015-16

2010-11 2011-12 2014-15

NTDC Lahore Region11. 220kV Grid Station NISHATABAD FAISALABAD

ConditionName of




2010-11 2011-12 2012-132015-16

2013-142013-14

220 kV Grid Station NishatabadPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L



220 kV N-1Normal

220 kV Grid Station NishatabadPerformance Evaluation Report for the year 2015-16



Normal 2209 5297 5743 3424 3728 1408 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 233 30 198 180 198 240 198 180 198 300 198 120 150 90

N-1 70 1741 1854 2422 2217 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 190 120 175 60 183 60 179 30 182 30 ‒ ‒

Normal 2209 5297 5743 3424 3728 1408 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 233 30 198 180 198 240 198 180 198 300 198 120 150 90

N-1 70 1741 1854 2422 2217 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 190 120 175 60 183 60 179 30 182 30 ‒ ‒

Normal 999 2606 2484 3078 2652 593 ‒ ‒ ‒ ‒ 234 30 240 30 235 30 ‒ ‒ 195 30 198 90 198 60 198 120 198 120 160 330

N-1 50 60 164 341 222 ‒ 240 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 190 30 185 60 188 30 185 30 190 60 ‒ ‒

Normal 1251 4660 4227 3690 3254 942 ‒ ‒ ‒ ‒ ‒ ‒ 233 60 ‒ ‒ ‒ ‒ 197 60 198 210 195 30 198 180 190 120 160 210

N-1 79 461 732 1046 759 ‒ 233 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 191 60 180 60 185 60 183 60 187 30 ‒ ‒

Normal ‒ 4338 3971 3671 3215 886 ‒ ‒ ‒ ‒ ‒ ‒ 233 60 ‒ ‒ ‒ ‒ ‒ ‒ 198 180 198 180 198 240 198 180 160 330

N-1 ‒ 327 658 1057 715 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 181 60 184 60 181 30 186 30 ‒ ‒NKLP: New Kot Lakhpat BDR: Bund Road SKP: Sheikhupura SNR: Sarfaraznagar WTN: WAPDA Town

6,668 22,198 22,168 17,287 16,577 5,237269 4,330 5,262 7,288 6,130 ‒

NTDC Lahore Region12. 220kV Grid Station NEW KOT LAKHPAT

Condition


criteria



2010-11 2011-12 2012-132010-11 2011-12 2012-13 2013-14 2015-162014-152015-16

2013-14 2015-162010-11 2011-12 2012-13 2013-14

2014-152014-15


220 kVNKLP - BDR - 1

220 kVNKLP - SKP

Ckt I & II220 kV

NKLP - SNRCkt I & II

220 kVNKLP - WTN

220 kVNKLP - BDR - 2

Total No. of Variations (N-1)Total No. of Variations (Normal)


220 kV Grid Station New Kot LakhpatPerformance Evaluation Report for the year 2015-16

269 4,330 5,262 7,288 6,130 ‒6,937 26,528 27,430 24,575 22,707 5,327

H 242 kV

231 kV H

209 kV L




220 kV N-1Normal

220 kV Grid Station New Kot LakhpatPerformance Evaluation Report for the year 2015-16



Normal 655 2337 2120 ‒ ‒ ‒ ‒ ‒ ‒ 196 30 188 30 190 60

N-1 1 246 1036 ‒ ‒ ‒ ‒ ‒ ‒ 203 30 188 30 178 60

Normal 664 2313 2122 ‒ ‒ ‒ ‒ ‒ ‒ 196 30 194 90 190 60

N-1 1 269 1031 ‒ ‒ ‒ ‒ ‒ ‒ 203 30 188 30 178 60

1,319 4,650 4,2422 515 2,067

1,321 5,165 6,309

H 242 kV

NTDC Lahore Region13. 220kV Grid Station NEW SHALAMAR

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14 2015-162014-152014-15 2014-15


Comm./Energized in2013-14

2013-14 2015-16

220 kVShalamar - KSK

220 kVShalamar - Ravi

Comm./EnergizedMar 2014




2012-13

Comm./Energ. in 2013-14 Lowest Voltage Under N-1 Condition


2010-11 2011-12 2012-13 2010-11 2011-12



2013-14



220 kV Grid Station New ShalamarPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station New ShalamarPerformance Evaluation Report for the year 2015-16



Normal 826 1889 2027 3140 3391 1243 236 240 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 240 198 270 198 450 188 270 198 270 180 90

N-1 31 184 483 769 567 2 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 190 60 188 120 175 30 180 30 190 30 191 90

Normal 857 1229 3313 2553 3196 1619 235 30 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 195 30 198 510 194 30 198 150 198 570 180 270

N-1 59 171 107 370 561 8 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 188 90 180 60 185 30 182 30 188 30 182 90

Normal 857 1927 3871 1673 3196 1619 235 30 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 195 30 198 270 192 30 185 30 198 570 180 270

N-1 59 106 378 950 561 8 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 188 90 188 120 185 30 182 30 188 30 182 90

Normal 477 1332 2930 3314 3120 1298 236 240 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 300 198 270 198 270 198 270 198 450 180 90

N-1 26 232 640 775 534 7 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 190 60 182 60 182 30 188 30 188 30 190 150

Normal ‒ ‒ ‒ 834 3262 1789 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 270 198 390 178 90

N-1 ‒ ‒ ‒ 315 821 11 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 188 30 185 30 180 120KSK: Kala Shah Kaku SKP: Sheikhupura SMR: Shalamar

3,017 6,377 12,141 11,514 16,165 7,568175 693 1,608 3,179 3,044 36

220 kVRavi - SKP

220 kVRavi - SMR


2012-13

220 kVRavi - Atlas

220 kVRavi - KSK I

2014-15

220 kVRavi - KSK II

2012-13 2013-14 2015-16 2010-112014-15

2014-152011-12

NTDC Lahore Region14. 220kV Grid Station RAVI

Condition


criteria



2010-11 2011-12 2012-132013-14 2015-16

2013-14 2015-162010-11 2011-12


Lowest Voltage Under N-1 ConditionTotal of Normal & N-1

220 kV Grid Station RaviPerformance Evaluation Report for the year 2015-16

175 693 1,608 3,179 3,044 363,192 7,070 13,749 14,693 19,209 7,604

H 242 kV

231 kV H

209 kV L


Total No. of Variations (N-1)Lowest Voltage Under N-1 Condition



220 kV N-1Normal

220 kV Grid Station RaviPerformance Evaluation Report for the year 2015-16



Normal ‒ 5 51 139 289 633 ‒ ‒ ‒ ‒ 240 60 236 390 240 90 240 150 ‒ ‒ 196 30 202 150 200 90 ‒ ‒ ‒ ‒

N-1 ‒ 1 ‒ ‒ 1 1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 195 120 ‒ ‒ ‒ ‒ 195 60 190 150

Normal ‒ 5 51 139 289 633 ‒ ‒ ‒ ‒ 240 60 236 390 240 90 240 150 ‒ ‒ 196 30 202 150 200 90 ‒ ‒ ‒ ‒

N-1 ‒ 1 ‒ ‒ 1 1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 195 120 ‒ ‒ ‒ ‒ 195 60 190 150

Normal ‒ 5 51 139 289 633 ‒ ‒ ‒ ‒ 240 60 236 390 240 90 240 150 ‒ ‒ 196 30 202 150 200 90 ‒ ‒ ‒ ‒

N-1 ‒ 1 ‒ ‒ 1 1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 195 120 ‒ ‒ ‒ ‒ 195 60 190 150

Normal ‒ 5 51 139 289 633 ‒ ‒ ‒ ‒ 240 60 236 390 240 90 240 150 ‒ ‒ 196 30 202 150 200 90 ‒ ‒ ‒ ‒

N-1 ‒ 1 ‒ ‒ 1 1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 195 120 ‒ ‒ ‒ ‒ 195 60 190 150

– 20 204 556 1156 2532– 4 – – 4 4– 24 204 556 1160 2536

2014-15



NTDC Lahore Region15. 220kV Grid Station SAMUNDRI ROAD FAISALABAD

ConditionName of




2010-11 2011-12 2012-132015-16

2013-142013-14

2015-162010-11 2011-12 2012-13


2014-15 2014-152013-142015-16 2010-11 2011-12 2012-13

Highest Voltage Under Normal Condition Lowest Voltage Under N-1 Condition

220 kVSamundri Road - Multan

Ckt I220 kV

Samundri Road - MultanCkt II

220 kVSamundri Road - Nishatabad

Ckt I220 kV

Samundri Road - NishatabadCkt II

220 kV Grid Station Samundri RoadPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L



220 kV N-1Normal

220 kV Grid Station Samundri RoadPerformance Evaluation Report for the year 2015-16



Normal 333 954 900 1081 672 1068 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 196 60 198 300 198 840 198 660 190 240 185 60

N-1 ‒ 34 63 68 33 110 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ _ _ 190 120 190 120 185 30 190 240 180 30

Normal 337 894 900 1081 672 1068 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 180 198 300 198 840 198 660 190 240 185 60

N-1 1 30 63 68 33 110 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 196 60 190 120 190 120 185 30 190 240 180 30

Normal 307 868 862 1064 673 1073 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 300 198 300 198 420 198 660 169 240 185 60

N-1 1 25 64 73 35 109 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 196 60 190 120 190 120 185 30 169 240 185 150

Normal 337 922 862 1064 673 1073 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 194 120 198 300 198 420 198 660 169 240 185 60

N-1 1 25 64 73 35 109 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 190 30 190 120 190 120 185 30 169 240 185 150

Normal 672 1068 250 30 ‒ ‒ 195 240 185 60

N-1 33 110 ‒ ‒ ‒ ‒ 190 120 180 30SNR: Sarfaraznagar YSW: Yousafwala NKLP: New Kot Lakhpat

1,314 3,638 3,524 4,290 3362 53503 114 254 282 169 548






220 kVSNR - NKLP

Ckt II220 kV

SNR - OkaraCkt

NTDC Lahore Region16. 220kV Grid Station SARFARAZNAGAR

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-142013-142015-16 2010-11 2011-12


2012-132014-15

2014-15 2014-15

220 kVSNR - YSW

Ckt II220 kV

SNR - NKLPCkt I

2013-142010-11 2011-12 2012-13

220 kVSNR - YSW

Ckt I

2015-16

220 kV Grid Station SarfaraznagarPerformance Evaluation Report for the year 2015-16

3 114 254 282 169 5481,317 3752 3,778 4,572 3531 5898

H 242 kV

231 kV H

209 kV L


Total No. of Variations (N-1)Total of Normal & N-1 Lowest Voltage Under N-1 Condition


220 kV N-1Normal

220 kV Grid Station SarfaraznagarPerformance Evaluation Report for the year 2015-16



Normal 517 601 494 402 430 681 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 360 198 420 198 1700 198 180 190 360 170 240

N-1 171 184 104 113 76 1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 160 120 170 60 175 60 180 120 180 120 195 60

Normal 498 597 478 403 401 681 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 420 195 420 198 180 198 300 190 360 170 240

N-1 137 151 122 113 75 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 120 60 175 60 175 60 180 120 180 120 ‒ ‒KSK: Kala Shah Kaku

1,015 1,198 972 805 831 1,362308 335 226 226 151 1

1,323 1,533 1,198 1,031 982 1,363

H 242 kV

NTDC Lahore Region17. 220kV Grid Station SIALKOT

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14 2015-162010-11

220 kVSialkot - Gakkhar

220 kVSialkot - KSK


Total of Normal & N-1 Lowest Voltage Under N-1 Condition


2014-152014-15 2014-152011-12 2012-13 2013-14


2013-14 2015-16 2010-11 2011-12 2012-13

220 kV Grid Station SialkotPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station SialkotPerformance Evaluation Report for the year 2015-16


Voltage Time Voltage Time Voltage Time Voltage Time VoltageTime Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time

Normal 240 240 660 ‒ ‒

N-1 1 – – 186 90

Table: 1

Normal 448 238 600 193 60

N-1 ‒ ‒ ‒ ‒ ‒

Normal 448 238 600 193 60

N-1 ‒ ‒ ‒ ‒ ‒Table: 2 T.T. Singh: Toba Tek Singh

Total No. of Variations (Normal) 240 896Total No. of Variations (N-1) 1 ‒

Total of Normal & N-1 241 896

220 kVMultan - T.T. Singh - Samundri Road

Ckt IT-OFF 220 kV G/S T.T.Singh


220 kVT.T. Singh - Multan

Ckt I & II


†: Reported as given in relevant column of table 2


NTDC Lahore Region18. 220kV Grid Station TOBA TEK SINGH

ConditionName of

Transmission Circuit(s) violating thevoltage criteria



2010-11 2011-12 2012-132011-12 2012-13 2013-14 2015-162015-162012-13


†


2015-162013-14 2014-15

†



2014-15 2014-15

Comm./Energized June 2015 Comm./Energized June 2015

2010-112010-11 2011-12 2013-14


†

‡

‡

‡

‡220 kV

T.T. Singh - Samundri RoadCkt I & II

Comm./Energized June 2015 Comm./Energized June 2015 Comm./Energized June 2015

‡

‡


220 kV Grid Station Toba Tek SinghPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L



220 kV N-1Normal

220 kV Grid Station Toba Tek SinghPerformance Evaluation Report for the year 2015-16



Normal 1575 1157 1610 2331 690 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 194 120 190 240 192 120 190 180 185 90

N-1 14 14 ‒ 288 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 196 30 194 60 ‒ ‒ 187 60 ‒ ‒

Normal 1338 1592 1601 2233 691 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 198 90 197 60 190 120 197 90 160 120

N-1 10 85 5 124 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 195 30 190 120 195 160 188 60 ‒ ‒WTN: WAPDA Town

2,913 2,749 3,211 4,564 1,38124 99 5 412 ‒

2,937 2,848 3,216 4,976 1,381

H 242 kV

2013-142013-14 2015-16 2010-11 2011-12

Comm./EnergizedJune 2011





NTDC Lahore Region19. 220kV Grid Station WAPDA TOWN LAHORE

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14 2015-162010-11

2014-152012-132011-12



220 kVWTN - NKLP




2012-132014-15 2014-15

220 kVWTN - Sheikhupura

NKLP: New Kot Lakhpat


220 kV Grid Station WAPDA TownPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station WAPDA TownPerformance Evaluation Report for the year 2015-16



Appendix 3


NTDC Multan Region

1. 500 kV D. G. Khan........................................................................................................................... 1 of 92. 500 kV Multan ................................................................................................................................. 2 of 93. 500 kV Muzaffargarh ....................................................................................................................... 3 of 94. 500 kV Yousafwala .......................................................................................................................... 4 of 95. 220 kV Bahawalpur.......................................................................................................................... 5 of 96. 220 kV Kassowal ............................................................................................................................. 6 of 97. 220 kV Muzaffargarh ....................................................................................................................... 7 of 98. 220 kV Okara ................................................................................................................................... 8 of 99. 220 kV Vehari .................................................................................................................................. 9 of 9

Multan Region1 of 9


Normal 14 569 60 – –

N-1 – – – – –

Normal

N-1

Normal

N-1

Total No. of Variations (Normal) 14Total No. of Variations (N-1) –

Total of Normal & N-1 14 NIL

H 550 kV H 242 kV


Comm./Energized Aug 2014

220 kVD.G. Khan - Loralai II

Comm./Energized Aug 2014 Comm./Energized Aug 2014 Comm./Energized Aug 2014

NIL

NIL

NIL

NIL

NIL NIL

220 kVD.G. Khan - Loralai I

Comm./Energized Aug 2014 Comm./Energized Aug 2014

NIL

NTDC Multan Region1. 500kV Grid Station D.G. KHAN

ConditionName of

Transmission Circuit(s) violatingthe voltage criteria



2010-11 2011-12 2012-132015-16

2013-142015-16

500 kVMultan - D.G. Khan - Guddu

2013-14

NIL

NIL

2011-12

NIL NIL NIL

2014-152014-15

NIL

2015-162010-11 2011-12

NIL

2012-13 2013-142012-13 2014-15

NIL

2010-11

500 kV Grid Station D.G. KhanPerformance Evaluation Report for the year 2015-16

H 550 kV H 242 kV

525 kV H 231 kV H

475 kV L 209 kV L

L 450 kV L 198 kV

H: HighestL: Lowest


500 kV Grid Station D.G. KhanPerformance Evaluation Report for the year 2015-16

Multan Region2 of 9

Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage TimeNormal

N-1Normal

N-1Normal

N-1Normal

N-1Normal

N-1Normal

N-1Normal

N-1Normal 1 244 60 – –

N-1 – – – –Normal 1 3 5 7 244 60 266 120 246 60 247 60 – – – – – – – –

N-1 – – – – – – – – – – – – – – – – – – –Normal 1 2 1 244 60 250 60 244 240 – – – – – –

N-1 – – – – – – – – – – – – – – –Normal 1 – 244 60 – – – – – –

N-1 – – – – – – – – – –

NA

NA

NA

NA

NA

NA

NA

NA

NIL NIL

NIL

NIL

NA

NA

NA

NA

NA

NA

NA

NA

220 kVMultan - Muzaffargarh 2



220 kVMultan - Kapco 3

NIL

NIL NIL

NA

NA

NIL

NIL

2011-122014-15


NA

NA

NA

500 kVMultan - Guddu 747

500 kVMultan - Muzaffargarh

NIL

NIL

NIL

NIL500 kV

Multan - Guddu INIL

NA

NA NA NA

NA

NIL

NP

NA

NA

NA

NA

NA NA

NA

NA

NIL

NIL

NIL

NIL

NIL

NIL NIL

NIL

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

500 kVMultan - Rousch

500 kVMultan - D.G. Khan - Guddu

NIL

NIL

NIL

NIL NP

NIL

NP NA

NA

NA

NA

500 kVMultan - Yousafwala

NIL

NIL

500 kVMultan - Gatti

NTDC Islamabad Region2. 500kV Grid Station MULTAN

ConditionName of




2010-11 2011-12 2012-132015-16

2013-14 2015-162010-11 2011-12 2012-13 2014-15 2014-152010-11 2012-13 2013-142013-14 2015-16

500 kV Grid Station MultanPerformance Evaluation Report for the year 2015-16

N-1 – – – – – – – – – –Normal 1 1 244 60 245 240 – – – –

N-1 – – – – – – – – – –Normal 1 3 14 1 244 60 246 330 249 60 246 120 – – – – – – – –

N-1 – – – – – – – – – – – – – – – – – – – –Normal 2 1 244 60 246 180 – – – –

N-1 – – – – – – – – – –Normal 2 – 244 60 – – – – – –

N-1 – – – – – – – – – –Normal 2 – 244 60 – – – – – –

N-1 – – – – – – – – – –Normal 2 – 244 60 – – – – – –

N-1 – – – – – – – – – –Normal

N-1NP: Not Provided

14 1 NIL 10 20 8– – – – – −

14 1 NIL 10 20 8



NA


220 kVMultan - Kapco 3

220 kVMultan - Kafco 4

NIL

NIL

NIL

NP NP NP

NIL

NA

NA

NA

NIL

NIL

NIL

NIL

NIL

NIL

NIL

NA

NA

NANIL

NA

NA

NA

NA

NA

NA

NA

NIL

NIL

NIL

NA

NA

NIL

NIL

NA

NA

NILNA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

220 kVMultan - Kafco 5 & 6

220 kVMultan - NGPS 1 & 2

220 kVMultan - Vehari 1 & 2

220 kVMultan - Samundri Road

220 kVMultan - T.T. Singh 1 & 2

NA: Not Applicable




NA

NA

NA

NA

Permissible Voltage Limits Under Normal & N-1 System Conditionsas per Performance Standards (Transmission) Rules 2005



NA

NA

NA

NA

NA


NA

500 kV

Normal

N-1

220 kV

Normal

N-1

500 kV Grid Station MultanPerformance Evaluation Report for the year 2015-16

Multan Region3 of 9


Normal

N-1

Normal

N-1

Normal

N-1

Normal

N-1

Normal

N-1TPS: Thermal Power Station



NIL

NIL

NIL

NIL

NIL

NIL

NIL

NIL

NIL

NIL

NIL

NIL

NIL

NTDC Multan Region3. 500kV Grid Station MUZAFFARGARH

ConditionName of

Transmission Circuit(s) violating the voltagecriteria



2010-11 2011-12 2012-132010-11 2011-12

2013-14 2015-162014-152014-15

220 kV500kV Grid Station TPS Phase-II - Muzaffargarh

500 kVMuzaffargarh - Gatti

500 kVMuzaffargarh - Guddu

500 kVMuzaffargarh - Multan

220 kV500kV Grid Station TPS Phase-I - Muzaffargarh


2015-162015-16

NIL

2010-11 2011-12 2012-132014-15

2013-14 2012-13 2013-14

NIL

NIL

NIL

500 kV Grid Station MuzaffargarhPerformance Evaluation Report for the year 2015-16

H 550 kV H 242 kV

525 kV H 231 kV H

475 kV L 209 kV L

L 450 kV L 198 kV

H: HighestL: Lowest




Multan Region4 of 9


Normal ‒ ‒ 1 ‒ 33 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 538 120 ‒ ‒ ‒ ‒ 465 60 ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ 1 ‒ 33 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 538 120 ‒ ‒ ‒ ‒ 465 60 ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ 2 95 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 235 60 ‒ ‒ ‒ ‒ ‒ ‒ 205 120 203 60

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ 2 95 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 235 60 ‒ ‒ ‒ ‒ ‒ ‒ 205 120 203 60

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ 2 95 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 235 60 ‒ ‒ ‒ ‒ ‒ ‒ 205 120 203 60

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒SNR: Sarfaraznagar NA: Not Applicable

– – 2 6 351 NA– – – – – NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

2014-15

NTDC Multan Region4. 500kV Grid Station YOUSAFWALA

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-142013-142015-16 2010-11

500 kVYousafwala - Multan

220 kVYousafwala - SNR

220 kVYousafwala - Gatti

2013-142014-15

NA

NA

NA

NA

2012-132015-16

2010-11 2011-12 2012-13 2014-15 2011-12

220 kVYousafwala - Kassowal



NA

500 kVYousafwala - Lahore

500 kV Grid Station YousafwalaPerformance Evaluation Report for the year 2015-16

– – – – – NA– – 2 6 351 NA

H 550 kV H 242 kV

525 kV H 231 kV H

475 kV L 209 kV L





500 kV Grid Station YousafwalaPerformance Evaluation Report for the year 2015-16

Multan Region5 of 9


Normal 31 135 15 421 305 506 240 120 236 60 242 30 248 90 236 180 248 30 194 60 200 120 203 30 200 60 205 120 196 30

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒TPS: Thermal Power Station

31 135 15 421 305 506– – – – – –

31 135 15 421 305 506

H 242 kV

231 kV H

NTDC Multan Region5. 220kV Grid Station BAHAWALPUR

ConditionName of




2010-11 2011-12 2012-132011-12 2012-13

2014-152014-15 2014-15

220 kVBahawalpur - TPS Muzaffargarh

Ckt I & II

2013-14 2015-162013-14 2015-16

2015-16 2010-112010-11 2011-12 2012-13 2013-14





220 kV Grid Station BahawalpurPerformance Evaluation Report for the year 2015-16

209 kV L


220 kV N-1Normal

220 kV Grid Station BahawalpurPerformance Evaluation Report for the year 2015-16

Multan Region6 of 9


Normal 502 241 30 200 60

N-1 − − − − −

Normal 502 241 30 200 60

N-1 − − − − −

Normal 502 241 30 200 60

N-1 − − − − −

Normal 502 241 30 200 60

N-1 − − − − −

2,008−

NIL 2,008

2013-14 2014-15

NIL

NIL

NIL

NIL

NIL

2014-15

NIL

NIL

NIL

Comm./Energized Jul 2015








NIL

NIL



Lowest Voltage Under Normal ConditionHighest Voltage Under Normal Condition

2012-132014-15

NTDC Multan Region6. 220kV Grid Station KASSOWAL

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14 2015-162013-142011-12 2012-13


2011-12

NIL

NIL

2015-16 2010-11

Kassowal - Vehari 1

Kassowal - Vehari 2

Kassowal - Yousafwala 1

Kassowal - Yousafwala 2




Comm./Energized Jul 2015 NIL


2010-11


220 kV Grid Station KassowalPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L



220 kV N-1Normal

220 kV Grid Station KassowalPerformance Evaluation Report for the year 2015-16

Multan Region7 of 9


Normal 50 1 92 ‒ 4 ‒ ‒ 232 60 239 90 ‒ ‒ 236 90 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 50 ‒ 92 ‒ 236 60 232 60 239 90 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒NP : Not Provided

100 1 184 – 4 NIL– – – – – NIL

100 1 184 – 4 NIL

H 242 kV

NIL

NILNP

2014-15

NP

2011-12 2015-162013-142012-13

NIL

NIL

NIL

NIL

2015-162010-11 2011-12 2012-13 2013-14

2014-15

220 kVMuzaffargarh - Multan

220 kVMuzaffargarh - TPS


TPS: Thermal Power Station


2013-142011-12

as per Peformance Standards (Transmission) Rules 2005

NTDC Multan Region7. 220kV Grid Station MUZAFFARGARH


Highest Voltage Recorded (kV) / Time (Min) Lowest Voltage Recorded (kV) / Time (Min)Condition

2010-112015-162014-15


NP


criteria 2010-11 2012-13


231 kV H

209 kV L


220 kV N-1Normal


Multan Region8 of 9


Normal 75 338 234 60 − − 202 60 190 90

N-1 – − – – − − – – − −

Normal – 338 – – − − – – 190 90

N-1 – − – – − − – – − −

75 338– –

75 338

H 242 kV






Commissioned on 30-06-2014



220 kVOkara - Sarfaraznagar

220 kVOkara - Yousafwala

2011-12 2012-132014-15 2015-16

2010-11 2010-11 2011-12 2012-132013-14 2015-162014-15 2014-152013-14


NTDC Multan Region8. 220kV Grid Station OKARA

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14



220 kV Grid Station OkaraPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station OkaraPerformance Evaluation Report for the year 2015-16

Multan Region9 of 9


Normal 278 23 744 559 764 297 240 90 235 30 240 90 240 150 240 120 240 90 207 150 208 30 ‒ ‒ 200 150 ‒ ‒ 205 30

N-1 ‒ ‒ ‒ 6 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 246 30 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 180 30 ‒ ‒ ‒ ‒

Normal 279 23 718 561 241 60 235 30 240 90 238 210 207 150 208 30 _ _ 200 150

N-1 ‒ ‒ ‒ 6 ‒ ‒ ‒ ‒ ‒ ‒ 246 30 ‒ ‒ ‒ ‒ ‒ ‒ 180 30

Normal 296 240 90 205 30

N-1 ‒ ‒ ‒ ‒ ‒NP: Not Provided

557 46 1,462 1,120 764 593‒ ‒ ‒ 12 ‒ ‒

557 46 1,462 1,132 764 593

2015-162012-132010-11

Lowest Voltage Under Normal ConditionHighest Voltage Under Normal Condition

2014-15

NP

2013-142010-112013-14

Comm./Energized Jul 2015 Comm./Energized Jul 2015

2014-15

220 kVVehari - Kassowal

Ckt I & IIComm./Energized Jul 2015

NTDC Multan Region9. 220kV Grid Station VEHARI

Condition

Name ofTransmission




2010-11 2011-12 2012-132011-12 2012-13 2015-16

NP

2011-12

NP

2014-15




220 kVVehari - Multan

Ckt I & II220 kV

Vehari - YousafwalaCkt I & II

2013-14 2015-16

220 kV Grid Station VehariPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L



220 kV N-1Normal

220 kV Grid Station VehariPerformance Evaluation Report for the year 2015-16



Appendix 4


NTDC Hyderabad Region

1. 500 kV Dadu .................................................................................................................................. 1 of 132. 500 kV Guddu ................................................................................................................................ 2 of 133. 500 kV Jamshoro............................................................................................................................ 3 of 134. 220 kV NKI.................................................................................................................................... 4 of 135. 220 kV Dharki ................................................................................................................................ 5 of 136. 220 kV Hala Road .......................................................................................................................... 6 of 137. 220 kV Khuzdar ............................................................................................................................. 7 of 138. 220 kV Loralai ............................................................................................................................... 8 of 139. 220 kV Quetta Industrial-II ............................................................................................................ 9 of 1310. 220 kV Rohri................................................................................................................................ 10 of 1311. 220 kV Shikarpur ......................................................................................................................... 11 of 1312. 220 kV Sibbi ................................................................................................................................ 12 of 1313. 220 kV T. M Khan Road .............................................................................................................. 13 of 13

Hyderabad Region1 of 13


Normal 41 461 384 829 162 9 539 60 547 180 540 660 540 560 541 60 539 1350 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 57 759 1075 1510 565 99 540 60 545 120 545 60 544 120 542 300 540 180 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 9 84 177 472 149 7 535 60 540 120 540 300 540 120 542 120 535 420 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 5 11 15 53 24 NIL 536 60 542 60 538 60 540 180 540 180 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 1484 531 246 120 240 360 ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 141 189 242 240 240 360 ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

2014-152014-152014-15

2013-142015-16 2010-11 2011-12 2012-13

NIL

220 kVDadu - Khuzdar II




220 kVDadu - Khuzdar I



Total No. of Variations (Normal) Highest Voltage Under Normal Condition

500 kVDadu - Jamshoro I

500 kVDadu - Jamshoro II

500 kVDadu - Guddu I

500 kVDadu - Guddu II

2013-14

NTDC Hyderabad Region1. 500kV Grid Station DADU

Condition

Name ofTransmission




2010-11 2011-12 2012-132015-16

2013-14 2015-162010-11 2011-12 2012-13

500 kV Grid Station DaduPerformance Evaluation Report for the year 2015-16

112 1,315 1,651 2,864 2,525 835– – – – – –

112 1,315 1,651 2,864 2,525 835

H 550 kV H 242 kV

525 kV H 231 kV H

475 kV L 209 kV L

L 450 kV L 198 kV

H: HighestL: Lowest


Total of Normal & N-1Total No. of Variations (N-1)



500 kV Grid Station DaduPerformance Evaluation Report for the year 2015-16



Normal ‒ ‒ 39 ‒ ‒ ‒ ‒ 535 120 ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ 1545 1449 1268 ‒ ‒ ‒ ‒ 540 60 540 180 540 90 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ ‒ 1382 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 638 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ ‒ 1089 1378 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 540 120 541 90 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ ‒ ‒ 1405 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 638 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

2014-152012-13

NA

NA

NA

NA

NA NA

NA

2011-122014-15

2014-15

NA

NA NA

NA

2010-11 2011-12 2012-13 2013-14

NA500 kV

Guddu - Dadu I

500 kVGuddu - Dadu II

500 kVGuddu - Multan

(T-Off D.G. Khan)

500 kVGuddu - 747 MW CCPP Guddu

220 kVGuddu - Sibbi (D/Ckt)

500 kVGuddu - Muzaffargarh

220 kVGuddu - Uch (P/H)

NTDC Hyderabad Region2. 500kV Grid Station GUDDU

ConditionName of




2010-11 2011-12 2012-132013-14 2015-16

2013-14 2015-162015-16 2010-11

500 kV Grid Station GudduPerformance Evaluation Report for the year 2015-16

Normal ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒NA: Not applicable.

– – – 1,584 2,538 5,433– – – – –– – – 1,584 2,538 5,433







220 kVGuddu - Uch (P/H)

220 kVGuddu - Shikarpur

Total No. of Variations (N-1)

500 kV

Normal

N-1

220 kV

Normal

N-1

500 kV Grid Station GudduPerformance Evaluation Report for the year 2015-16



Normal 75 16 47 17 188 76 540 360 535 60 538 180 544 60 542 60 550 60 ‒ ‒ ‒ ‒ 245 60 ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 75 16 47 17 188 76 540 360 535 60 538 180 544 60 542 60 550 60 ‒ ‒ ‒ ‒ 245 60 ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 134 62 55 17 177 77 538 60 538 120 538 180 544 60 542 60 538 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 179 53 55 17 180 70 538 120 536 120 538 60 544 60 542 60 536 120 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 176 107 297 138 230 193 241 60 239 120 242 60 247 60 239 60 245 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 176 107 297 138 230 192 241 60 239 120 242 60 247 60 239 60 241 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 113 66 277 136 229 193 239 120 239 180 240 120 247 60 239 60 245 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

2014-15

NTDC Hyderabad Region3. 500kV Grid Station JAMSHORO

ConditionName of




2010-11 2011-12 2012-132013-14 2015-16

220 kVJamshoro - KDA33 - II

2015-16

500 kVHub - Jamshoro (D/Ckt)

220 kVJamshoro - KDA33 - I

2014-152014-15

2013-14 2015-162010-11 2011-12 2012-13

500 kVJamshoro - Dadu I

500 kVJamshoro - Dadu II

500 kVJamshoro - NKI

2012-13 2013-142011-12 2010-11

220 kVJamshoro - Hala Road I

500 kV Grid Station JamshoroPerformance Evaluation Report for the year 2015-16

Normal 113 66 277 136 229 193 239 120 239 180 240 120 247 60 239 60 245 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 113 66 277 136 230 193 239 120 239 180 240 120 247 60 239 60 245 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 167 90 286 138 230 193 249 120 240 120 241 60 247 60 239 60 245 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 167 90 286 136 230 193 249 120 240 120 241 60 247 60 239 60 245 60 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

1,375 673 1,924 890 2,112 1,456– – – – – –

1,375 673 1,924 890 2,112 1,456






220 kVJamshoro - Hala Road I

220 kVJamshoro - Hala Road II


220 kVJamshoro - T.M. Khan - I

220 kVJamshoro - T.M. Khan - II

500 kV

Normal

N-1

220 kV

Normal

N-1

500 kV Grid Station JamshoroPerformance Evaluation Report for the year 2015-16


Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time

Normal 64 53 200 201 175 61 531 60 531 60 542 30 539 30 537 30 545 60 ‒ ‒ 468 30 472 30 ‒ ‒ 463 30 ‒ ‒

N-1 − ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 64 54 200 201 175 61 531 60 531 60 542 30 539 30 537 30 545 60 ‒ ‒ 468 30 472 30 ‒ ‒ 463 30 ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 1105 1854 1169 2097 2516 1533 244 120 245 60 247 30 248 30 243 30 250 60 200 60 ‒ ‒ 208 60 ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 1104 1923 1169 2097 2523 1533 244 120 245 60 247 30 242 60 243 30 250 60 200 60 198 60 208 60 ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

2,337 3,884 2,738 4,596 5,389 3,188– – – – – –

2,337 3,884 2,738 4,596 5,389 3,188



Total of Normal & N-1Total No. of Variations (N-1)

500 kVNKI - Hub

500 kVNKI - Jamshoro

220 kVNKI - Baldia

220 kVNKI - KDA33

2015-162013-14 2015-16

2010-11 2011-12 2012-13 2013-142014-15

2014-15

NTDC Hyderabad Region4. 500kV Grid Station NKI KARACHI

Condition

Name ofTransmission




2010-11 2011-12 2012-132010-11 2011-12 2012-13 2013-14 2015-162014-15

500 kV Grid Station NKI KarachiPerformance Evaluation Report for the year 2015-16

H 550 kV H 242 kV

525 kV H 231 kV H

475 kV L 209 kV L

L 450 kV L 198 kV

H: HighestL: Lowest



500 kV Grid Station NKI KarachiPerformance Evaluation Report for the year 2015-16



Normal 28 11 19 ‒ 240 60 236 480 235 150 ‒ ‒ ‒ ‒ 208 120 207 30 ‒ ‒

N-1 22 ‒ 2 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ 204 60 ‒ ‒ 197 60 ‒ ‒

Normal 12 240 120 206 60

N-1 ‒ ‒ ‒ ‒ ‒

Normal 12 240 120 206 60

N-1 ‒ ‒ ‒ ‒ ‒Na: Not Applicable

28 11 19 – 2422 – 2 – –50 11 21 – NA 24

NA

2014-15

NA

2010-11 2011-12 2012-13 2013-142013-14 2015-16 2010-11 2011-12 2012-13

NTDC Hyderabad Region5. 220kV Grid Station DHARKI

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14 2015-162014-152014-15


220 kVBus Bar


NA

Reported as 220 kV Bus Bar

Reported as 220 kV Bus Bar220 kV

Ddharki - FPCDLNA

NAHighest Voltage Under Normal Condition Lowest Voltage Under Normal ConditionTotal No. of Variations (Normal)

Total No. of Variations (N-1)

220 kVDharki - Engro

NA NA NA

NA NAReported as 220 kV Bus Bar




220 kV Grid Station DharkiPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L



220 kV N-1Normal

220 kV Grid Station DharkiPerformance Evaluation Report for the year 2015-16



Normal 1312 103 543 543 81 3 241 540 237 420 239 300 239 300 238 120 232 90 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

Normal 1312 103 543 543 81 3 241 540 237 420 239 300 239 300 238 120 232 90 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

N-1 ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒ ‒

2,624 206 1,086 1,086 162 6– – – – – –

2,624 206 1,086 1,086 162 6

H 242 kV

2015-16 2010-11





2014-152014-15

220 kVHala Road - Jamshoro I

220 kVHala Road - Jamshoro II

2013-14


criteria 2010-11 2011-12 2012-132013-14 2015-16

NTDC Hyderabad Region6. 220kV Grid Station HALA ROAD



2015-162010-11 2011-12 2012-13 2013-14 2012-13

Condition2014-152011-12

220 kV Grid Station Hala RoadPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station Hala RoadPerformance Evaluation Report for the year 2015-16



Normal 567 398 240 540 255 90 185 120 180 60

N-1 3 − − − − − 194 60 − −

Normal 567 398 240 540 255 90 185 120 180 60

N-1 3 − − − − − 194 60 − −

1,134 7966 −

1,140 796

H 242 kV

2014-152013-14

220 kVDadu - Khuzdar I


2012-132011-12 2013-14 2015-16 2010-11 2011-122012-13



220 kVDadu - Khuzdar II







Comm./Energized 2014-15

NTDC Hyderabad Region7. 220kV Grid Station KHUZDAR

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14 2015-162010-11

2014-152014-15




220 kV Grid Station KhuzdarPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station KhuzdarPerformance Evaluation Report for the year 2015-16



Normal 584 623 242 600 250 60 200 60 − −

N-1 77 − 252 60 − − − − − −

Normal 584 623 242 600 250 60 200 60 − −

N-1 77 − 252 60 − − − − − −

1,168 1,246154 −

1,322 1,246

H 242 kV

2014-15

NTDC Hyderabad Region8. 220kV Grid Station LORALAI

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14 2015-16




2013-14 2015-16 2010-11 2011-12 2012-132010-11 2011-12 2012-13 2013-142014-15

2014-15

220 kVLoralai - D.G. Khan I

220 kVLoralai - D.G. Khan II










220 kV Grid Station LoralaiPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station LoralaiPerformance Evaluation Report for the year 2015-16


Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time

Normal 477 522 641 6157 2865 6053 − − − − − − − − 240 120 250 60 188 60 199 120 199 120 170 60 199 180 175 60

N-1 2211 2494 2295 40 3145 − − − − − − − − − − − − − 170 240 172 60 170 180 174 60 170 120 − −

Normal 477 522 641 6387 2865 6053 − − − − − − − − 240 120 250 60 170 300 155 60 180 60 170 60 199 180 175 60

N-1 2211 2494 2295 52 3145 − − − − − − − − − − − − − 170 240 172 60 170 180 174 60 170 120 − −

954 1,044 1,282 12,544 5,730 12,1064,422 4,988 4,590 92 6,290 −5,376 6,032 5,872 12,636 12,020 12,106

2010-11 to 2012-13 N-1 Voltages?H 242 kV


2014-15



220 kVSibbi - Quetta

Ckt I220 kV

Sibbi - QuettaCkt II

2013-14 2015-162010-11

2014-15

NTDC Hyderabad Region9. 220kV Grid Station QUETTA INDUSTRIAL-II

Condition


criteria



2010-11 2011-12 2012-132010-11 2011-12 2012-13 2013-14 2015-162015-162013-14


2011-12 2012-13 2014-15


220 kV Grid Station Quetta Industrial-IIPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station Quetta Industrial-IIPerformance Evaluation Report for the year 2015-16



Normal 165 84 111 411 240 30 239 30 242 60 252 60 190 30 200 30 198 480 208 60

N-1 − 7 − − − − 264 30 − − − − − − − – − − − −

Normal 111 411 − − 252 60 198 480 208 60

N-1 − − − − − − − − − −

Normal 12 13 165 84 419 410 240 180 239 30 240 30 239 30 242 60 252 60 203 60 200 30 190 30 200 30 _ _ 208 60

N-1 3 1 − 7 − − 245 60 245 60 − − 264 30 − − − − − − − − − − − − − − − −

Normal 419 410 242 60 252 60 − − 208 60

N-1 − − − − − − − − − −

12 13 330 168 1,060 1,6423 1 – 14 – –

15 14 330 182 1,060 1,642

2014-15 2014-15

Comm./EnergizedJune 2012 Comm./Energized June 2012 Comm./Energized June 2012

2013-142015-16 2010-11 2011-12 2012-13


Comm./Energized Oct 2014

Highest Voltage Under Normal Condition Lowest Voltage Under Normal ConditionTotal No. of Variations (Normal)Total No. of Variations (N-1)



220 kVShikarpur - Rohri I

220 kVShikarpur - Rohri II

220 kVRohri - Engro I

220 kVRohri - Engro II

2013-14


2015-162010-11 2011-12 2012-13

2014-15

Comm./Energized Oct 2014 Comm./Energized Oct 2014

NTDC Hyderabad Region10. 220kV Grid Station ROHRI

Condition

Name ofTransmission




2010-11 2011-12 2012-132015-16

2013-14

220 kV Grid Station RohriPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L



220 kV N-1Normal

220 kV Grid Station RohriPerformance Evaluation Report for the year 2015-16



Normal 83 35 87 276 182 18 240 660 − − − − − − − − 250 120 200 480 200 240 200 1440 199 1440 199 720 208 60

N-1 24 18 14 1 4 − − − − − − − − − − − − − 180 240 180 180 180 1440 196 300 190 720 − −

Normal 83 35 87 276 167 7 240 660 − − − − − − − − 235 180 200 480 200 240 200 1440 200 1440 200 780 − −

N-1 24 18 14 1 1 − − − − − − − − − − − − − 180 240 180 180 180 1440 198 300 196 480 − −

Normal − − − 276 111 19 − − − − − − − − − − 250 120 − − − − − − 200 1440 198 480 205 300

N-1 − − − 1 − − − − − − − − − − − − − − − − − − − − 198 300 − − − −

Normal − − − 276 107 19 − − − − − − − − − − 250 120 − − − − − − 200 1440 198 480 205 300

N-1 − − − 1 − − − − − − − − − − − − − − − − − − − − 198 300 − − − −

166 70 174 1,104 567 4548 36 28 4 5 ‒

214 106 202 1,108 572 45


2014-15



220 kVShikarpur - Guddu

2014-152014-15

220 kVShikarpur - Uch

220 kVShikarpur - Rohri I

220 kVShikarpur - Rohri II

2013-14 2015-162010-11 2011-12

NTDC Hyderabad Region11. 220kV Grid Station SHIKARPUR

Condition

Name ofTransmission




2010-11 2011-12 2012-132015-16

2013-142013-142010-11 2011-12 2012-132012-13

2015-16



220 kV Grid Station ShikarpurPerformance Evaluation Report for the year 2015-16

H 242 kV

231 kV H

209 kV L



220 kV N-1Normal

220 kV Grid Station ShikarpurPerformance Evaluation Report for the year 2015-16



Normal 1828 2742 1681 3754 851 1145 240 240 − − 240 120 − − 240 60 − − 192 60 200 180 199 60 199 90 180 60 192 60

N-1 255 299 558 426 − − 245 60 − − − − − − − − − − 170 60 180 60 130 30 180 30 − − − −

Normal 1828 2742 1681 3754 781 1149 240 240 − − 240 120 − − − − 237 60 192 60 200 180 199 60 199 90 180 60 192 60

N-1 255 299 558 426 1 − 245 60 − − − − − − − − − − 170 60 180 60 130 30 180 30 195 60 − −

Normal 1828 2412 1483 2606 604 545 240 240 − − 235 30 238 60 240 540 253 60 192 60 190 60 199 240 199 60 185 60 192 60

N-1 255 200 450 280 4 1 245 60 − − − − − − − − − − 170 60 180 60 180 240 180 30 194 60 196 60

Normal 1828 2412 1483 2606 722 543 240 240 − − 235 30 238 60 240 540 253 60 192 60 190 60 199 240 199 60 185 120 192 60

N-1 255 200 450 280 4 2 245 60 − − − − − − − − − − 170 60 180 60 180 240 180 30 194 60 196 60

Normal 1828 2778 3075 2495 2669 539 240 240 − − 241 210 240 30 240 30 253 60 192 60 20 30 199 270 192 90 195 60 192 60

N-1 255 218 863 214 205 − 245 60 − − − − − − − − − − 170 60 180 60 180 120 180 60 180 30 − −

9,140 13,086 9,403 15,215 5,627 3,9211,275 1,216 2,879 1,626 214 3

10,415 14,302 12,282 16,841 5,841 3,924

2012-13 2012-132014-152014-15 2015-16

2015-16 2010-11 2014-152011-12 2013-14


Ckt II220 kV

Sibbi - UchCkt I

220 kVSibbi - Uch

Ckt II



220 kVSibbi - Guddu DC

Ckt


Ckt I

2010-11 2011-12


Lowest Voltage Under (N-1) Condition

NTDC Hyderabad Region12. 220kV Grid Station SIBBI

Condition

Name ofTransmission




2010-11 2011-12 2012-132015-16

2013-142013-14

220 kV Grid Station SibbiPerformance Evaluation Report for the year 2015-16

10,415 14,302 12,282 16,841 5,841 3,924

H 242 kV

231 kV H

209 kV L



Total of Normal & N-1 Lowest Voltage Under (N-1) Condition

220 kV N-1Normal

220 kV Grid Station SibbiPerformance Evaluation Report for the year 2015-16



Normal 133 226 616 767 473 187 240 180 242 60 240 540 241 60 242 60 240 60 − − − − − − − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

Normal 133 226 616 767 473 187 240 180 242 60 240 540 241 60 242 60 240 60 − − − − − − − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

266 452 1,232 1,534 946 374‒ ‒ ‒ ‒ ‒ ‒

266 452 1,232 1,534 946 374

H 242 kV


2013-142013-14 2015-16 2010-11 2011-122015-16

2010-11 2012-13


2011-12 2012-132014-15


220 kVT.M.Khan - Jamshoro I

220 kVT.M.Khan - Jamshoro II

NTDC Hyderabad Region13. 220kV Grid Station T.M. KHAN ROAD

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-142014-15 2014-15

220 kV Grid Station T.M. Khan RoadPerformance Evaluation Report for the year 2015-16

231 kV H

209 kV L


220 kV N-1Normal

220 kV Grid Station T.M. Khan RoadPerformance Evaluation Report for the year 2015-16



Appendix 5


K-Electric

K-Electric1 of 4

Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage TimeNormal − − − − − − − − − − − − − − − − − − − −

N-1 1 − − − − − − − − − − − 207 − − − − − − −Normal 1 1 1 1 − − − − − − − − − − − − − − 118 122 NP 117 NP 116 − − − −

N-1 1 − − 1 − − − − − − − − − − − − − − 111 − − − − 114 − − − −Normal 1 1 1 1 − − − − − − − − − − − − − − 122 NP 122 NP 117 114 − − − −

N-1 − − 1 1 − − − − − − − − − − − − − − − − − − 118 112 − − − −Normal − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

N-1 1 − − − − − − − − − − − − − − − − − 117 NP − − − − − − − − − −Normal 1 − − − − − − − − − − − − − − − − − 122 − − − − − − − − − −

N-1 1 − − − − − − − − − − − − − − − − − 117 − − − − − − − − − −Normal − 1 1 1 1 − − − − − − − − − − − − − − − 119 NP 119 116 115 − −

N-1 1 − 1 1 1 1 − − − − − − − − − − − − 114 NP − − 118 113 114 117.4 147Normal − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

N-1 1 − − − − − − − − − − − − − − − − − 112 NP − − − − − − − − − −Normal − − 1 1 − − − − − − − − − − − − − − − − − − 119 NP 113 − − − −

N-1 1 − − 1 − − − − − − − − − − − − − − 119 NP − − − − 113 − − − −

2014-152014-15

NilNil

K-Electric SystemCircuit Wise Number of Voltage Variations Violating Criteria

Condition


criteria



2010-11 2011-12 2012-132015-16

2013-14 2015-162010-11 2011-12 2012-13

NP NP

2013-142013-14 2015-16 2010-11 2011-12 2012-13 2014-15

Nil

132 kVWest Wharf - Lyari

NP NP

NP

NP NP

220 kVBaldia - Mauripur

132 kVSurjani - Maymar

132 kVSurjani - Valika

132 kVSITE - SGT 1

132 kVSITE - SGT 2

132 kVGulshan - Civic

NP

132 kVValika - N. Karachi

132 kVKDA - Federal B

NP

Performance Evaluation Report for the year 2015-16

N-1 1 − − 1 − − − − − − − − − − − − − − 119 NP − − − − 113 − − − −Normal − 1 − − − − − − − − − − − − − − − − − − 119 NP − − − − − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − 1 1 1 1 − − − − − − − − − − − − − − − 118 NP 116 NP 122 112 − −

N-1 − − − 1 1 1 − − − − − − − − − − − − − − − − − − 114 116 117.1 280Normal − 1 1 1 − − − − − − − − − − − − − − − − 120 114 114 − − − −

N-1 − 1 1 1 − − − − − − − − − − − − − − − − 116 118 116 − − − −Normal − 1 1 1 − − − − − − − − − − − − − − − − 120 114 114 − − − −

N-1 − 1 1 1 − − − − − − − − − − − − − − − − 118 115 115 − − − −Normal − 1 1 1 − − − − − − − − − − − − − − − − 122 116 NP 113 − − − −

N-1 − 1 − 1 − − − − − − − − − − − − − − − − 118 − − 113 − − − −Normal − 1 1 1 1 − − − − − − − − − − − − − − − 123 NP 120 NP 118 NP 121 NP − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − 1 1 1 − − − − − − − − − − − − − − − − − 122 NP 118 NP 121 NP − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −NP: Not Provided

132 kVWest Wharf - Lyari

132 kVQayyumabad - K. East

NP

132 kVGulshan - Civic

NP

NP

NP

NP

132 kVMemon Goth - Malir

NP NP NP

132 kVGharo - RECP

132 kVBOC - Dhabeji

132 kVMalir - CAA

NP NP

132 kVGulshan - Hospital

NP


K-Electric2 of 4

Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage TimeNormal − − 1 1 − − − − − − − − − − − − − − − − − − 120 NP 118 NP − − − −

N-1 1 − − − − − − − − − − − − − − − − − 119 NP − − − − − − − − − −Normal − − 1 1 1 − − − − − − − − − − − − − − − − − 119 NP 116 NP 115 − −

N-1 − − − − 1 − − − − − − − − − − − − − − − − − − − − − 114 − −Normal − − 1 1 1 − − − − − − − − − − − − − − − − − 113 116 115 − −

N-1 − − 1 1 1 1 − − − − − − − − − − − − − − − − 118 113 114 117.4 147Normal − − 1 1 − − − − − − − − − − − − − − − − − − 113 111 − − − −

N-1 − − 1 1 − − − − − − − − − − − − − − − − − − 116 111 − − − −Normal − − 1 1 1 − − − − − − − − − − − − − − − − − 116 116 115 − −

N-1 − − 1 1 1 1 − − − − − − − − − − − − − − − − 118 113 114 117.4 147Normal − − 1 1 1 − − − − − − − − − − − − − − − − − 117 116 115 − −

N-1 − − 1 1 1 1 − − − − − − − − − − − − − − − − 118 113 114 117.4 147Normal − − 1 1 − − − − − − − − − − − − − − − − − − 119 NP 122 − − − −

N-1 − − − 1 − − − − − − − − − − − − − − − − − − − − 112 − − − −Normal − − − 1 − − − − − − − − − − − − − − − − − − − − 114 NP − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −

2014-15

NP

NP

NP

NP

132 kVFederal B - Valika

NA

132 kVHaroonabad - Liaquatabad

132 kVValika - Nazimabad

132 kVKDA - Maymar

NP NA

132 kVJohar - Hospital

NP NP

132 kVKDA - Gulshan

NP NP

132 kVKDA - Memon Goth

132 kVKDA - Johar

NP NP


ConditionName of




2010-11 2011-12 2012-132013-14 2015-162012-132012-13 2013-14

132 kVDhabeji - Gharo

2015-16 2010-112014-15

2014-152013-14 2015-16

2010-11 2011-12 2011-12


N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − 1 1 − − − − − − − − − − − − − − − − − − 116 NP 111 NP − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − 1 1 − − − − − − − − − − − − − − − − − − 117 113 − − − −

N-1 − − 1 1 − − − − − − − − − − − − − − − − − − 118 113 − − − −Normal − − 1 1 − − − − − − − − − − − − − − − − − − 116 113 − − − −

N-1 − − 1 1 − − − − − − − − − − − − − − − − − − 117 113 − − − −Normal − − 1 1 1 − − − − − − − − − − − − − − − − − 116 117 112 − −

N-1 − − 1 1 1 1 − − − − − − − − − − − − − − − − 118 116 118 117.4 331Normal − − 1 1 − − − − − − − − − − − − − − − − − − 116 114 NP − − − −

N-1 − − 1 − − − − − − − − − − − − − − − − − − − 114 − − − − − −Normal − − 1 1 1 − − − − − − − − − − − − − − − − − 118 NP 122 NP 115 − −

N-1 − − − − 1 1 − − − − − − − − − − − − − − − − − − − − 115 117.1 280Normal − − − 1 − 1 − − − − − − − − − − − − − − − − − − 121 NP − − 116.9 78

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −NP: Not Provided

NP

NP

132 kVGulshan - Azizabad

132 kVMauripur - Haroonabad

132 kVHaroonabad - Nazimabad

132 kVKorangi West - Defence

NP

NPNP

NP NP

132 kVPipri West - Port Qasim

132 kVHaroonabad - Liaquatabad

132 kVValika - Nazimabad

132 kVGulshan - Jalil Road

NPNP


K-Electric3 of 4

Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage TimeNormal − − − 1 − 1 − − − − − − − − − − − − − − − − − − 121 NP − − 116.9 78

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − − − − − − − − − − − − − − − − − − − − − − − 120 NP − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − − 1 − − − − − − − − − − − − − − − − − − − − 122 NP − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − 1 1 − − − − − − − − − − − − − − − − − − 120 NP 121 NP − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − 1 1 − − − − − − − − − − − − − − − − − − 114 NP 121 NP − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − 1 − − − − − − − − − − − − − − − − − − − 116 NP − − − − − −

N-1 − − − 1 − − − − − − − − − − − − − − − − − − − − 112 NP − − − −Normal − − − 1 − − − − − − − − − − − − − − − − − − − − 119 NP − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − 1 1 − − − − − − − − − − − − − − − − − − 114 115 − − − −

N-1 − − 1 1 − − − − − − − − − − − − − − − − − − 116 117 − − − −

2014-152014-15 2014-15

NPNP

132 kVPort Qasim - Landhi

132 kVOrangi - Valika

132 kVLiaquatabad - Azizabad

2011-12 2012-13

132 kVPipri West - KEPZ

132 kVKEPZ - Landhi

132 kVGul Ahmed - Airport 1 & 2

2012-13 2013-14

132 kVValika - North Nazimabad

2015-16 2010-11

132 kVKTPS - PRL

132 kVK. East - K. South


Condition


criteria



2010-11 2011-12 2012-132013-14 2015-16

2013-14 2015-162010-11 2011-12


N-1 − − 1 1 − − − − − − − − − − − − − − − − − − 116 117 − − − −Normal − − − 1 − − − − − − − − − − − − − − − − − − − − 120 NP − − − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 124 − −

N-1 − − − − 1 − − − − − − − − − − − − − − − − − − − − − 118 − −Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 124 NP − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 124 − −

N-1 − − − − 1 − − − − − − − − − − − − − − − − − − − − − 118 − −Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 124 − −

N-1 − − − − 1 − − − − − − − − − − − − − − − − − − − − − 118 − −Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 115 NP − −

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − − − 1 1 − − − − − − − − − − − − − − − − − − − − 121 NP 116.9 78

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −NP: Not Provided

NP

NP

132 kVPipri - Korangi Town

NPNP

132 kVPort Qasim - Landhi

132 kVBaldia - Orangi

132 kVBaldia - Valika

132 kVBaldia - Hub

132 kVBaldia - SGT - SITE

132 kVK. West - Gizri - Baloch

NP

132 kVLiaquatabad - Azizabad


K-Electric4 of 4

Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage Time Voltage TimeNormal ‒ − − − 1 1 − − − − − − − − − − − − − − − − − − − − 121 NP 116.9 78

N-1 − − − − − − − − − − − − − − − − − − − − − − − − − − − − − −Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 112 − −

N-1 − − − − 1 − − − − − − − − − − − − − − − − − − − − − 116 − −Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 116 − −

N-1 − − − − 1 1 − − − − − − − − − − − − − − − − − − − − 116 117.1 280Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 116 − −

N-1 − − − − 1 1 − − − − − − − − − − − − − − − − − − − − 116 117.1 280Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 116 − −

N-1 − − − − 1 − − − − − − − − − − − − − − − − − − − − − 116 − −Normal − − − − 1 − − − − − − − − − − − − − − − − − − − − − 116 − −

N-1 − − − − 1 1 − − − − − − − − − − − − − − − − − − − − 116 117.1 280Normal 1 − − 116.9 78

N-1 − − − − −Normal 1 − − 116.9 78

N-1 − − − − −

Reported combined in 2015-16



NP

132 kVPipri / RECP / Gharo

132 kVPipri / BOC / Dhabeji

132 kVKDA / Memon Goth /Malir







2014-15

NP

NP

NP

NP

2011-12 2012-13

132 kVPipri - Landhi

132 kVQayyumabad - DHA 1

132 kVQueen's Road - Clifton

2012-13 2013-14

132 kVQueen's Road - Old Town

2015-16 2010-11

132 kVQueen's Road - Gizri

132 kVQueen's Road - Elander Road

2014-152014-15


ConditionName of




2010-11 2011-12 2012-132013-14 2015-16

2013-14 2015-162010-11 2011-12


N-1 − − − − −Normal − − − − −

N-1 1 − − 117.4 280Normal − − − − −

N-1 1 − − 117.1 280NP: Not Provided Time duration of voltage variation reported for the first time in 2015-16

8 9 27 32 22 63 3 13 18 16 12

11 12 40 50 38 18

L 209 kV 231 kV H L 125.4 kV 138.6 kV H198 kV L H 242 kV 118.8 kV L H 145.2 kV








132 kVPipri / BOC / Dhabeji

132 kVKDA / Memon Goth /Malir

132 kVKorangi West / Baloch / Gizri






Lowest Voltage Under Normal ConditionTotal No. of Variations (N-1)



220 kV

Normal

N-1

132 kV

Normal

N-1




Appendix 6

System Frequency - Historical Data as Reported by the Licensees

1. NTDC.............................................................................................................................................. A6 - 12. K-Electric ....................................................................................................................................... A6 - 2

Performance Evaluation Report of NTDC & K-Electric for FY 2015-16 A6-1


Historical System Frequency Data as Reported by NTDC

MonthHighest System Frequency Recorded Violating the prescribed Upper Limit1

(Hz)

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16July 50.54 50.56 50.48 50.2 50.71 50.75Aug 50.53 50.48 50.52 50.31 50.68 50.69Sep 50.56 50.44 50.56 50.22 50.55 50.69Oct 50.43 50.44 50.45 50.35 50.69 50.53Nov 50.44 50.56 50.4 50.3 50.62 50.62Dec 50.39 50.48 50.4 50.28 58.63 50.71Jan 50.4 50.44 50.21 50.7 54.69 51.47Feb 50.4 50.36 50.1 50.63 49.49 NILMar 50.48 50.48 50.34 50.63 50.65 50.64Apr 50.44 50.4 50.3 50.68 50.66 NILMay 50.5 50.44 50.26 50.6 50.69 NILJune 50.48 50.48 50.23 50.57 50.68 49.49

MonthLowest System Frequency Recorded Violating the prescribed Lower Limit2

(Hz)

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16July 48.99 48.72 48.76 49.05 48.74 49.07Aug 48.84 48.72 48.80 49.15 48.91 49.15Sep 48.91 48.72 48.72 49.35 48.93 49.19Oct 48.81 48.80 48.80 49.50 48.99 49.21Nov 49.02 48.92 48.72 49.31 48.83 49.22Dec 48.80 48.76 48.72 49.15 45 49.32Jan 48.80 48.72 49.10 48.67 45 45Feb 48.78 48.80 48.66 48.87 49.06 NILMar 48.81 48.76 49.40 48.92 49.11 50.52Apr 48.75 48.76 49.32 48.89 49.02 NILMay 48.62 48.76 49.48 49.20 49.2 NILJune 48.68 48.76 49.20 49.19 50.51 49.35

1 Upper Limit: 50.50 Hz, Rule 8(1) of PSTR 20052 Lower Limit: 49.50 Hz, Rule 8(1) of PSTR 2005

Performance Evaluation Report of NTDC & K-Electric for FY 2015-16 A6-2


Historical System Frequency Data as Reported by K-Electric

MonthHighest System Frequency Recorded Violating the prescribed Upper Limit3

(Hz)

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16July 50.92 50.61 50.60 51.15 50.58 50.6Aug 50.97 50.96 51.05 51.70 50.64 NILSep 50.61 50.90 50.65 51.70 50.51 NILOct 50.81 50.46 50.65 51.69 50.53 NILNov 50.52 50.55 50.57 51.93 50.55 NILDec 50.73 50.57 50.76 51.68 50.82 50.6Jan 50.54 50.61 50.80 51.15 50.54 50.7Feb 50.58 50.56 50.59 51.10 50.51 NILMar 50.77 50.90 50.72 51.91 50.58 NILApr 50.47 50.28 51.08 51.28 50.51 NILMay 50.65 51.25 51.49 51.06 50.57 50.6June 50.73 50.78 51.55 51.72 50.52 NIL

MonthLowest System Frequency Recorded Violating the prescribed Lower Limit4

(Hz)

2010-11 2011-12 2012-13 2013-14 2014-15 2015-16July 48.80 48.51 48.56 48.61 48.97 49.4Aug 48.80 48.60 48.60 48.68 49.1 49.4Sep 48.80 48.60 48.59 48.73 49.13 49.4Oct 48.80 48.51 48.60 48.80 49.18 49.4Nov 48.80 48.67 48.60 48.74 48.94 NILDec 48.80 48.60 48.59 48.76 49.15 NILJan 48.79 48.60 48.50 48.61 49.07 49.4Feb 48.80 48.52 47.12 48.80 49.39 NILMar 48.88 48.60 48.80 48.59 49.26 NILApr 48.40 48.60 48.74 48.63 49.26 NILMay 46.64 48.54 48.63 48.66 49.29 NILJune 46.38 48.59 48.62 48.80 49.32 49.4

3 Upper Limit: 50.50 Hz, Rule 8(1) of PSTR 20054 Lower Limit: 49.50 Hz, Rule 8(1) of PSTR 2005

p e r f o r m a n c e evaluation report - … ntdc and ke...2015-16 87 1.644 2.4 8.322 system...

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