electrical load a~alysis · 480 volt emergency pov.7er system

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ELECTRICAL LOAD A...~ALYSIS

:FOR

· 480 VOLT EMERGENCY POv.7ER SYSTEM

SURRY POWER STATION

UNIT 2

DOCKET NO. 50-281

LICENSE NO. DPR-37

;,

ISSUED: MARCH 24, 1980

VIRGINIA ELECTRIC AND PO\.!ER COMPANY

.8005280 h3CJ.

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l.O System Description

2.0 Load Tabulation

INDEX

3.0 Voltage Analysis; 480 Volt Safety Buses

4.0 Feeder Cables to New Load Centers 2Hl and 2Jl

Appendix A - 4 kV Safety Bus Voltage Profiles

Appendix B - Tabulation of Loads

,, •) e e

1.0 System Description

Reference attached Sketch 12846.23-EKS-21A.

A 480 V load center will be added to each train of the emergency power system. The equipment used will be Class IE load centers purchased for North Anna Units 3 and 4 and transferred from storage there. The load center transformer primaries will be connected in parallel with the primaries of the existing load center transformers to the 4,160 V feed breakers presently in use. Feeder cables to the existing motor control centers (i.e., two per load center) will be disconnected from the existing load centers and connected to the new load center of the associated train of emergency power. The new load centers will be located in the associated train emergency switchgear room near the existing 480 V load centers.

& ... 1, ... , ~VOM II WHSTIR !NGINf!RING CORPORATION r··----------

UNIT 2 1 i

416( V EMER BUS 2J

I 62sJ1

;- 2J7PH?.--,. ~- -------··- ·- ---~\. ______ _

~-\. 1- 416CV . ;..1..l 1...1 1n0.o ·1·1-:,-:ivvA ,-v-y"' 4f\CN rr_~j.13:::'.' ,·,In -_'--· i . -·~•,

I ______ ,r/Y)A

IE.OOA )24JI 2.JC·JA )"::,1-Jl5 TRIP COIL 4BOV ~ EMER eus 2J 4POV 1 :=,.~rn BU~) ? .J-1

I I\ ' . I. (;OOA )24JG GOOA 1Z_tlJ 10 GCDf\ ) oOOA /.

, ' -- 12:1J14_J2,1J1'

L----~ _d fMCc1J l 2_J~~-'

[M·cc l ~::~__I

,11(;,(·V :J.\::':P EUS 2H -------------- --

--- •• ----- _ _J__ - ----. -··.--

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2.0

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L

e Load Tabulation

To calculate bus loadings accurately and conservatively, the following guidelines were established:

a:· ·All loads which cycle under automatic control (sump pump, air compressors, etc) were assumed running when analyzing a bus. This approach is highly conservative since it does not consider load duty cycling or diversity factor.

b. Where available, driven equipment brake-horsepower was used for load tabulation. If brake-horsepower was not available, motor nameplate horsepower was used.

c. Where the control room operator has a choice of equipment providing redundant services (i.e., control room chillers), it was assumed that the equipI:1.ent connected to the bus under analysis was in service.

d. All motor-operated valves on these buses were considered short-term loads of relatively ~ow demand. The majority of these valves have operating tl:i.mes of less than 30 seconds. They were not listed as continuous ioad on the bus.

e. The breaker trip points were determined from the time versus current trip characteristic curves for the device. Because of manufacturing tolerances, this curve is a band. the lower bound of this band was used to determine the earliest possible time at which the breaker could trip.

f. Loads were assumed as constant kVA when computing voltage profiles. Appendix Bis the tabulation of safety-related motor control center loadings.

Each load on the 480 V emergency bus was also reviewed with station operating supervisors to establish which are connected for various plant conditions. This review established which loads ran only for refueling or were started by manual control (such as hydrogen recombiner}. In addition, some loads were determined to be automatically shed by a consequence limiting safeguard (CLS) signal.

2.1 New 480 V Load Centers 2Hl and 2Jl

Data: Load Center 2Hl

ITE 480 V metal-clad unit substation, indoor-type.

1. Incoming Section: 5 kV air terminal chamber.

,, ·e e 1. Incoming Section: 5 kV air termination chamber.

2. Transformer: 4,160 V primary delta; 480 V secondary delta with 1-2 1/2 percent tap above rated and 3-2 l/2 percent taps below rated voltage on primary. Impedance: 8 percent on 1,000 kVA base transformer rated 1,000 kVA self-cooled, l,333 kVA fan-cooled (fans installed); dry type ventilated.

3. Switchgear: Two vertical sections with seven break.er compartments and one instrument compartment. 480 V bus throat connected to transformer.

4. Breaker: ITE K600 series with K1600 {1,600 amp) incoming line breaker.

Loading on the original 480 V load c_enters 2H and 2J _ i_s reduced by -transf'erring feeders for two MCCs from- 2H and 2J-to the new load_ centers.

Load center power requirements are outlined on tabulation of loads sheets 1 and 2, attached. From the totals on tabulation sheets 1 and 2, the maximum connected loads on buses 2H and 2J would occur during a LOCA. This maximum load represents: -

1,002 kVA/1,333 kVA, or 75.2 percent of bus 2H capacity

1,002 kVA/1,333 kVA, or 75.2 percent of bus 2J capacity

Although pressurizer heaters trip on low pressurizer level, it is possible to re-energize them without exceeding ratings of load centers. With pressurizer he.9.ters on during a LOCA, bus 2H would be 94 percent loaded and bus 2J would be 90 percent loaded.

Summary: 480 V load centers 2H and 2J are within design rated capacity for all station operating conditions.

~--·-····'"""'···---------:---------------------~-·--·-··

•• e· • 2. Transformer: 4,160 V primary delta, 480 V secondary delta, vith 4 - 2 1/2 percent taps below rated voltage on primary~ Impedance: 8 percent on 1,000 kVA base transformer rated 1,000 kVA self-cooled, 1,333 kVA fan-cooled (fans installed); dry-type ventilated.

3. Switchgear: Two vertical sections with seven breaker compartments and one instrument compartment. 480. V bus throat connected to trans forr.ier.

4. Breakers: ITE K600 series with K2000 (2~000 amp) incoming line breaker.

Load center 2Jl is the same as 2Hl except opposite hand.

The two ne-w load centers, 2Hl- and 2Jl, 'Will each feed two safetyrelated :motor control centers (MCCs). The MCCs are the only loads on these new buses.

The maximum loading on the load centers, as a result of the MCCs is·: summarized below:

Load Center· 2Hl (LOCA Lo~ding - Max)

MCC 2Hl-l

MCC 2lll-2

Total:

355 kVA

·188.9 kVA

543.9 kVA

Load Center 2Jl (LOOP Loading - Max)

MCC 2Jl-l

MCC 2Jl-2

Total:

154.5 k~A

239.6 kVA

394.1 kVA

The nev l.oad centers are rated l,000/1,333 kVA vhere .the 1,000 kVA is a se1~-cooled rating. The maximum loading on 2Hl is 54 percent of 1oad center continuous rating •. · The maximum l.oading o:f 2Jl is 39 percent of load center continuous rat~ng~

Summary: 480 V load c·enters 2lll and· 2Jl are vithin design rated capacity for all station operating conditions.

2.2 Original. 480 V - Load Centers 2H and 2J

Data: Load Centers 2H and 2J

ITE 480 V metal-clad unit substation~ indoor type.

I

,.

BREAKER No.

24Hl

··-···· - ... 24H2

24H3

24H4

24H5

24H6

24H7

24H8

24H9

24Hl0

·- e 480 V UNIT SUBSTATION 11 2H"

TABULATION OF LOADS - SHEET 1

MODIFIED SYSTEM

UTJIT SUBSTATION 2H DESCRIPTION OF LOAD

Incoming Line, 1600 A

Pressurizer Heater;250.kW

LOCA W/LOOP

.. ( 2.)

LHSI Pp, 2-SI-P-lA; 250 Hp 223

Inside Recirc Spray Pp, 2-RS-P-lA; 300 Hp 277

Containment Spray Pp, 2-CS-P-lA; 250 Ep 225

LOOP NORMAL

250 . 250.

Spare ~

Outside Recirc Spray Pp, 2-RS-P-2A; 300 Hp 277

Containment Recirc F~n, 2-VS-F-lA; 125 Hp

Future

Spare

(l)

TOTALS

(1) Trips on receipt of SIS signal.

(2) Trips on low pressurizer level.

(3) Abbreviations for Unit conditions:

1,002

LOCA - Loss of Coolant Accident

LOOP - Loss of Offsite Power

118

368

NORMAL - Normal Unit Operation, 100 Percent Power

Motor KVA frcm. 1-".:anufacturer's Data sheets

1:t8

368

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BREAKER · NO.

24Jl

24J2

24J3

24J4

24J5

24J6

24J7

24J8

24J9

24Jl0

480 V UNIT SUBSTATION 11 2J"

TABULATION OF LOADS - SHEET 2

MODIFIED SYSTEM

UIHT SUBSTATION cJ LOCA DESCRIPTION OF LOAD W/LOOP

Incoming Line, 1600A

Spare

LHSI Pp, 2-SI-P-lB; 250 Hp 223

Inside Recirc Spray Pp, 2-RS-P-lB; 300 Hp 277

Containment Spray Pp, 2-CS-P-lB, 250 Hp 225

Spare

Outside Recirc Spray Pp, l-RS-2B; 300 Hp 277

Containment Recirc Fan, 2-VS-F-lB; 125 Hp (1)

Pressurizer Heater, 200 kW (2)

Spare

TOTALS

(1) Trips on receipt of SIS signal.

(2) Trips on low pressurizer level.

(3) Abbreviations for Unit conditions:

1,002

LOCA - Loss of Coolant Accident

LOOP - Loss of Offsite Power

KYA LOAD( 3 )

LOOP

118

200

318

NORMAL - Normal Unit Operation, 100 Percent Power ·

:Motor KVA from Manufacturer's Data sheets

NORMAL

J.18

~'00

318

,, --

480 V UNIT SUBSTATION "2Hl" TABULATION OF LOADS:- SHEET 3

MODIFIED SYSTEM

KVA LOAD BREAKER UNIT SUBSTATION 2Hl LOCA

NO. DESCRIPTION OF LOAD W/LOOP

24Hll Incoming Line, 2000A

24Hl6 MCC 2Hl-l, 600A - .... - .... 355

24Hl5 MCC 2Hl-2,. 600A 188.9

TOTALS 543.;9

NOTES:

(1) Spare cubicle~ exist in the new substation that are not presently filled.

(2) For detailed breakdown of loads on above, reference Appendix B.

LOOP -

.355.6

207.8

543.4

·- - - -.··:-~

LOCA -

355.

188.9

543.9

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. . ' ~' '

-··-~--... - - - -~ . .:..·!:". •' ........... _ ---·'---""'- ·---- -······---

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BREAKER NO.

.24J15

24Jl4

24J13

NOTES:

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480 V UNIT SUBSTATION "2Jl" TABULATION OF LOADS - SHEET 4

. MODIFIED SYSTEM

UNIT SUBStATION 2Jl LOCA DESCRIPTION OF LOAD W/LOOP

Incoming Line, 2000A

MCC 2Jl-l, 600A 173.9

MCC 2Jl-2, 600A 215.7

TOTALS 389.6

KYA LOAD

LOOP

154.5

239.6

394.1

(1) Spare cubicles exist in the new substation that are not presently filled.

(2) For detailed breakdown of loads on above, reference Appendix B.

LOCA

173.9

215.7_

.---

389.6

I

3.0 Voltage Analysis; 480 Volt Safety Buses

The following voltage range was calculated for the 4 kV safety buses 2H and 2J, which feed the 480 V safety-related load centers. The calculations are included in Appendix A and the results are summarized below:

Voltage levels are on a 4,ooo volt base.

4 kV safety bus 2H; minim.um = 0.9848 p.u. maximum= 1.0690 p.u.

4 kV safety bus 2J; minimum.= 0.9911 p.u. maximum= 1.0690 p.u.

Using the load tabulations of Section 2.0, the following voltage prof'iles for 480 V safety bus Hand J were calculated for maximum and minimum 4 kV bus levels:

1. Voltage profiles for maximum steady state loading on 480 V buses 2H, 2J, 2Hl, and 2Jl.

2. Voltage profile for starting th~ largest safety-related 300 hp motor on buses 2H and 2J while bus is at maximum load.

3. Light load voltage profile for 480 V buses 2H, 2HL, 2,T,, 2Jl using highest voltages on the 4 kV input buses.

The calculations examine the highest grid voltage with light loading of the buses and the lowest grid voltae;e wit"h the heaviest loading of these buses. These two conditions bound the bus voltage range for the load centers. If the motor voltage remains within equipment design range at these bounds, then it remains within this design range for all voltages. ·

3.1 Prog::-am Data

Calculations were run on Stone & Webster program 6995 - Station.Service System Calculations; Input Data Sheet 11. This program is used to determine running (steady state) motor voltage and motor starting voltage for any chosen load center primary voltage.

Data -a. Safety-related motors for Surry Power Station were specified

and purchased with 70 percent starting nameplate voltage.

b. Motor nameplate is 460 V.

c. Design operating range of motors is 460 V + 10 percent.

e d. Load centers transformers are l,OOO/l,333 kVA, 4,160 V, 480 V.

Primary tap at 4,056 V •

. e. Load center transformers impedance is 8 percent on 1,000 kVA.

f. Review of manufacturers motor data on motors fed from the 480 V load centers indicates starting power factors of 0.26 and above. A power factor of 0.25 was used for motor starting calculations.

g. Locked rotor current for motor starting was taken from motor data.

3.2 Voltage Profile - Maximum Steady State Bus Loading

The voltage profiles for maximum bus loading were computed as outlined below.

For each run, motor running voltage was computed for the minimum grid voltage conditions computed in Appendix A. voltage (on 36.5 kV bus) will give lowest motor running Maximum loading for buses is given in Section 2.0.

3.2.1 l

Run No. 1101 - 480 V Bus 2H - maximum loading

maximum and Grid low

voltage.

Grid low - motor running voltage = 92.67 ~ercent of 460 V

3.2.2 Run No, 1103 - 480 V Bus 2Hl - maximu.'11 loading

Grid low - motor running voltage = 95.60 percent of 460 V

3.2.3 Run No. 1105 - 480 V Bus 2J - maximum loading

Grid low - motor running voltage = 93.37 percent of 460 V

3.2.4 Run No. 1107 - 480 V Bus 2Jl - maximum loading

Grid low - motor running voltage

3.3 Voltage Profile - Motor Starting

= 97.19 percent of 460 V

All large 480 V safety-related motors are fed rrom load centers 2H and 2J. Maximum loading on these switchgears occurs during Safety Injection (LOCA) conditions. Worst voltage starting condition is starting the last motor with the load center at maximum load. This motor, the largest on the bus, would be the 300 hp outside Recirculation Pump Motor which starts 5 minutes a~er containment hi-hi pressure signal. If this motor starting voltage remains above 70 percent of nameplate, than all. other motors on this load center will have a minimum of 70 percent starting voltage.

3.3.1

3.3.2

Ru~ I. 1102 - Load Center 2H - staAg 300 hp 2-RS-P-2A

Motor leads impedance from cable schedule data is 0.0089 + j 0.0085 ohms/phase (from Stone & Webster Cable Impedance Calculations)

Grid low - motor starting voltage - 75.2~ percent of 460 V

Run No. 1106 - Load Center 2J - starting 300 hp 2-RS-P-2B

Motor leads impedance from cable schedule data is 0.0124 + j O. 0115 ohms/phase ( from Stone & Webster Cable Impedance Calculations)

Grid low - motor starting voltage - 74.07 percent of 460 V

3.4 Light Load Analysis - Voltage Profile

.Highest voltage seen at 480 V load centers would occur at load center light loading, Reserve Station Service transformer light loading, and switchyard grid.high voltage.

From Appendix A light loading voltages at high grid voltage.are as follows:

3.4.1

3.4.2

4 kV Bus 2H light load= 1.0690 p.u. at 4,000 V 4 kV Bus 2J light load= 1.0690 p.u. at 4,ooo V

Run :No. 1104 - Light Load 480 V - Load Centers 2H and 2Hl

Minimum loading condition on buses is conservatively estimated· , --,i as 100 kVA. . , ,

Grid high - light load - motor running voltage - 106.89 percent of 460 \i

Run No. 1108 - Light Load 480 V - Load Centers 2J and 2J"l

Minimum loading condition on buses is conservatively estimated as 100 kVA.

Grid high~ light load - motor running voltage= 106.89 percentof 460 V

3. 5 Surnary of Voltage Calculations

The 480 V safety load center voltage remains within the equipment design range of.!. 10 percent of 460 Vat the motor terI'linals for 4 kV transfer bus heav:r and light load voltage conditions.

Motor starting voltage, for safety-related motors, remains above 70 percent for transfer bus heavy and light load conditions a.rid switchyard high and low grid voltage.

With the lightest loading on safety buses and high switchyard grid voltage, equipment terminal voltages remain within 10-percent of nameplate rating.

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480Y BUS ~H FJ.1. FROM RSS B MAXIMUM LOADIN~ UNIT 1 AT lOO~WER; UNIT 2 TRIP WITH CLS SI~

DATA SHEET 11

STATION .SERVICE SYSTEM CALCULATIONS

Starting Voltage - Low Voltage Motors

X JOB ORDER NO. 12846.2:S:LIENT VEPCO PLANT .SURRY UNIT · 2

RUN NO.. 1101 BY cfJ(J. <ljy-#J · DATE i/;sf,ao · PROGRAM VERIFICATION NO. . . REVI~ : 1/ .oooooooo6995exo

* __ 1_ HP MOTOR BEING STARTED •. . DATE _ . \- :l"} D1· ·.

* 460 V. · MOTOR llAMEPLATE · MOTOR LEADS

** 1 AMP. LOCKED ROTOR CURRENT R = * . X == * OilliS/PHASE -----** .25 PF OF LOCKED ROTOR CURRENT

*

*

*

1000 KVA TRANSFORMER, STEP-DOWN TO MOTOR VOLTAGE

8.oo _PER CENT IMPEDANCE VOLTS, STEP...:nown TRANSFORUER

1002 KVA PRIOR LOAD ON TRAUSFORMER SECONDARY

** .85 PF,. PRIOR LOAD

* 163 MVA MIN. SHORT CIRCUIT AVAILABLE AT TRANSF. PRI. TERMINALS .

NOH. PRI. VOLTAGE:* 4000 V; PRI. TAP:**

(7) PRI.

VOLTAGE LOADED,

%

110 .. 00 100.00

95.00 96.06

(8) SEC.

VOLTAGE LOADED,

PU

1.0789 .9695 ~9142· .9260

(9) HOTOR

STARTING VOLTAGE,

%

SWITCHYARD LOW VOLTAGE

98.48 .9528

(10) MOTOR

RUNNING VOLTAGE,

%

105.28 94.35 88.82 90.00

92.67

RECOU.* 4056 CHOSEN

(7) no?t. PRI. VOLTNm BASE

(8) (9) (10) MOTOR HA?IEPLATE VOLTAGE BASE

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480V BUS 2H STARTING LARGEST MOTOR 2-RS-P-2A ·· ·e e .· DATA SHEET 11

STATION SERVICE SYSTEM CALCULATIONS


X JOB ORDER N0.12846.23 CLIENT VEPCO PLANT SJIBBY IillIT 2

RUN NO. 1102 BY i)~/~ ----.oooooooo6995ex0 PROGRAM VERIFICATION NO •. REVIEWED BY -----* 300 HP MOTOR BEING STARTED DATE

* 460 V. MOTOR llAMEPLATE MOTOR LEADS .

** 2450_ AMP. LOCKED ·ROTOR· CURRENT. _ .R = ~.0089 .x = .*.0085 OH?fS/PHASE -

** .25 PF' OF LOCKED ROTOR CURRENT ,

* 1000 KVA TRANSFORMER, STEP-DOWU TO MOTOR VOLTAGE

* 8.oo PER CENT IMPEDANCE.VOLTS, STEP-DOWU TRANSFORHER

* 725 KVA PRIOR LOAD ON TRAUSFORliER SECONDARY: ----** .85 PF, PRIOR LOAD

* 163 MVA HIN. SHORT CIRCUIT AVAILABLE AT TRANSF. PRI. TERHimu.S

NOI1. PRI. VOLTAGE:* 4000 V; PRI. TAP:**·

(7) (8) (9) (10) PRI. SEC. HOTOR MOTOR

VOLTAGg . VOLTAGE STARTING RUNNING LOADED, LOADED, VOLTAGE, VOLTAGE,

% }>U % % ----110.00 .9346 85.11 100.00 .8406 76.55

95~00 .7932 12.21. 104.01 .,8785 80.00


98.48 .8262 75 .. 25

RECOU.* 4056 CHmmN .. ·

(7) . NO?t •. PRI. VOLTAGE -BASE

(8), (9) (10) :1-tOTOR UA?lEPLATE VOLTAGE BASE.·

...

' ( ,,. F-

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48QV BUS,2H-l(new) MAXIMUM LOADING

e DATA SHEET 11


Starting Voltage - Low Voltage Motors .

X JOB ORDER N0.12846.23 CLIENT VEPCO

RUN NO. JJD3 BY AJ1, Cf;1uP ~000000006995ex0 PROGRAM VERIFICATION NO.

* 1 UP MOTOR BEING STARTED ---* 460 V. MOTOR NAMEPLATE ---

** 1 AMP. LOCKED ROTOR CURRENT R = * ---** • 25 PF OF LOCKED ROTOR CURRENT ---

PLANT SURRY UNIT 2

DATE I lj B/£>o . . / .

. . REVIEWED- BY ~

DATE··~

MOTOR LEADS X=* Olni .. <;/PHASE

* * *

iooo KVA- TRANSFORMER, STEP-DOWU TO MOTOR VOLTAGE

a.oo PER CENT IMPEDANCE VOLTS, STEP-DOWU TRANSFORUER

544 KVA PRIOR LOAD ON TRAUSFOIDER SECONDARY ---'** .85 PF, PRIOR LOAD ---

* 163 MVA HIN. SHORT CIRCUIT AVAILABLE AT TRANSF. PRI. TEPJ-IT!rALS.

NOU. PRL VOLTAGE:* 4000 V; PR!. TAP:**

(7) PR!.

VOLTAGE LOADED,

%

110.,00 100.00

95.00 93.,22

(8) SEC.

VOLTAGE LOADED,

PU

1.,1042 .,9982 09450 .9260

(9) HOTOR

STARTING VOLTAGE,

%


98.48 .9821

(10) MOTOR

RUNNING VOLTAGE,

%

107.81 .97 .22 .

· 91.89 90.00

95.60

RECOH.* 4056 CHOSEN'

(7) non. PR.I. VOLTAGE BASF:

(8) (!>) (10) MOTOR HAllEPLATE VOLTAGE BASE

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48~V BUS . 211& 2H-1 LIGHT LOAD CONDITION e • . ·. DATA SHEET 11


Starting Voltage - Low Voltage. Motors

X JOB ORDER N0.12846.23 CLIENT VEPCO PLANT SURRY UNIT 2

RUN NO. 1104 . BY fj J. ~ri?tev ~ATE --',1~0--Je /"-"s'--o---• oooooooo6995exo PROGRAM VERIFICATION NO •. REVIEWEn BY·=~+--

* 1 UP MOTOR BEING STARTED DATE ' .,

* 460 v. MOTOR NAMEPLATE ·. , MOTOR LEADS

** . ·1 .. ·AMP.: LOCKED ROTOR CURRENT , · R = * X= * OHUS/PHASE -. · ..

'**' ;.25 PF OF LOCKED ROTOR CU~NT- · ··-··--· . ·-···

* 1000 KVA TRANSFORMER, STEP-DOWN TO MOTOR VOLTAGE

* s.ou PER CENT IMPEDANCE VOLTS, STEP-DOt-ht TRAUSFORtIBR i

* 100 KVA PRIOR LOAD ON TRAUSFORMER SECONDARY

** .85 PF, PRIOR LOAD

* 163 MVA MIN. SHORT CIRCUIT AVAILAB'LE AT TRAMSF. PRI. TERUINALS

NOU. PRI. VOLTAGE:* 4000 V; PR!. TAP:**

(7) PRI.

VOLTAGE LOADED,

%

(8) SEC.

VOLTAGE LOADED,

PU

110.,00 1.1269 100.00 1.0235

(9) MOTOR

STARTING VOLTAGE,

%

SWITCHYARD HIGH VOLTAGE

106.,90 1.0949

(10) · MO'l'OR ··

RUNNING VOLTAGE,

%

110.09 99.75

106.89

.... (7)., NOH. PRI. VOLTAGE · BASE

· .. (8), (9) (10) MOTOR . 'HAIIEPLATE VOLTAGE · BASE

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480V BUS 2J . ' e MAXIMUM LOADING CONDITION

e DATA SHEET 11



X JOB ORDER N0.12846,23 CLIENT VEPCQ -PLANT SURRY JTNTT 2

RUN NO. ] 1 0 5 BY Jo 1' . CJ:;1:u)/;5 DATE -t/t e,/e D

• 000000:06995ex0 PROGRAM VERIFICATION NO. . REVIEW. EDD A~TEY $$_z~ v-• .-

* UP MOTOR BEING. STARTED .n. " 1

* 460 V. MOTOR NAMEPLATE MOTOR LEADS

** 1 AMP. LOCKED ROTOR CURRENT R = * X = * OIUL«;/PHASE ---** .25 PF OF LOCKED ROTOR CURRENT

* *

*

1000 KVA TRAHSFORMER, STEP-DOWN TO MOTOR VOLTAGE

a.oo . PER CENT IMPEDANCE VOLTS, STEP-nmm TRANSFORHER

1002 KVA PRIOR LOAD ON TRANSFORMER SECOlIDARY

** .as PF, PRIOR LOAD

* 17 0 ?WA MIN. SHORT. CIRCUIT AVAILABLE AT TRANSF. PRI. TERl·ffi-IALS .

NOUc PIU. VOLTAGE:* 4000 V;

(7) (8) (9) PRI. s~c. HOTOR

VOLTAGl~ VOLTAGE STARTING LOADED, LOADED, VOLTAGE,

% PU %

110.00 1.0789 100.00 .9695

95.00 .9142 96.06 .9260

SWITCllYARD LOW VOLTAGE

99.11 .9597

PRI. TAP:**

(10) MOTOR

RUNNING VOLTAGE,

%

105.28 94.35

· 88.82 90.00

93~37

RECOlt.* 4056 CHOSEN

(7) HOH. PRI. VOLTA<m BASE

(8) · (9) (10) - UOTOR llAHEPLATE VOLTAGE -BASE

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480V bus 2J STARTING LARGEST MOTOR 2-RS-P-2B

·e e STATION SERVICE SYSTEM CALCULATIONS



RUN NO. 1106 BY f)1,9fmk .oooooooo6995ex0 PROGRAM VERIFICATION NO.

* 300 UP MOTOR BEIUG STARTED ---* 460 V. MOTOR NAMEPLATE

DATA SHEET 11 :-

MOTOR LEADS

';

** 2450 AMP. LOCKED ROTOR CURRENT R = *.0124_ ,X.=_ .*.0115 ,, omis/PHASE

** .25 , PF OF LOCKED ROTOR CURRENT

* 1000 KVA TRANSFORMERt STEP-DOWN TO MOTOR VOLTAGE .

* n.oo PER CENT IMPEDANCE VOLTS, STEP-DOmt TRANSFORHER

* 725 KVA PRIOR LOAD ON TRAUSFORl~R SECONDARY

** .85 PF, PRIOR LOAD

* 170 MVA MIN. SHORT CIRCUIT AVAILABLE AT TRANSF. PRI. TERMINALS

NOU. PRI. VOLTAGE:* 4000 V; PRI. TAP:** . • · R:&COU .. * 4056- CHOSEN'

(7) (8) (9) (10) HOTOR MOTOR

' ' ~ ·, .

PRI. SEC. STARTING RUNNING

··:···., ... VOLTAGE VOLTAGE LOADED, LOADED, VOLTAGE,

i PU %

110.00 .9435 83.17 100.00 .8488 74.82

95.00 .8010 70.61 106.18 .,9076 ao.oo


99.11 .8403 74.07

VOLTAGE, % (7) _ 'NO!t. PRI. VOLTAGE . ·. -

BASE

(8) (9) -(10) UOTOR ?lAlmPLATE VOLTAGE

· BASE

; '~·.·

..

.·(

J

(

L_

480V BUS 2J-1 (new) HEAVY LOAD CONDITION

e DATA SHEET 11

STATION SERVICE SYSTEM CALCULATIONS .



RUN NO. 1107 BY ,[)J. · ~· .oooooooo6995ex0 PROGRAM VERIFICATION NO •.

1 UP MOTOR BEING STARTED * ---* 4 60 V. MOTOR NAMEPLATE

** 1 AMP. LOCKED ROTOR CURRENT R = * ---** .25 PF OF LOCKED ROTOR CURRENT. ---

PLANT SURRY Unit 2

DATE l/;6/80 · REVI~ BY GfK/J

DATE '/2;1(gb-

MOTOR LEADS. X=* OHUS/PHASE

* * *

1000 KVA TRANSFORMER, STEP-DOWU TO MOTOR VOLTAGE

8.00 PER CENT IMPEDANCE VOLTS, STEP-DOWU TRANSFORHER

390 KVA PRIOR LOAD ON TRAUSFORlJER SECONDARY·

** .85 PF, PRIOR LOAD ---

* 170 MVA HIN. SHORT CIRCUIT AVAILABLE AT TRAUSF. PRI. TEPJ.fINALS

NOH. PRI. VOLTAGE:* 4000 V;

(7) (8) (9) PRI. SEC. HOTOR

VOLTAGE VOLTAGE STARTING LOADED, LOADED, VOLTAGE,

i PU %

110.00 1.1123 100.00 . 1.0073

SWITCIIYARD LOW VOLTAGE

99.11 .9979

PRI. TAP:**

(10) . MOTOR

. RUNNING VOLTAGE,

%

108.62 . 98 ... 12 ..

97.19

RECOU.* 4056 . CHOSER

(7) l'.OU. PR!. VOLTAGE - BASE

(8) (9) .. {10) MOTOR ?WtF..PLATE VOLTAGE BASE

c·

(

(

DATA SHEET. 11


Starting Voltage~ Low Voltage Motors


mm No. 110s

.oooooooo6995ex0 PROGRAM VERIFICATION NO.

* 1 UP MOTOR BEING STARTED

* 460 V. MOTOR NAMEPLATE

** ___ l AMP. LOCKED ROTOR CURRENT R = * . ** • 25 PF OF LOCKED ROTOR CURRENT

PLANT SURRY JlliIT 2

-DATE 1/;e Ira u REVI~D BY 6IJ1?

. ., , . DATE · "/1.'1/({) r •

MOTOR LEADS X=* omtc; /PHASE

* 1000 KVA" TRANSFORMER, STEP-DOWN TO MOTOR VOLTAGE

* . 8.00 _PER CENT IMPEDANCE VOLTS, STEP-DO\·m TRANSFORUER ._ ·

* 100 KVA PRIOR LOAD ON TRANSFORMER SECONDARY

** __ ._8_5 PF, PRIOR LOAD

* 170 MVA HIN. SHORT CIRCUIT AVAILABLE AT TRANSF. PR!. TERUIHALS .

NOll. PR!. VOLTAGE:* 4000 V; PR!. TAP:** RECOli.* 4056 .. CHOSEN

(7) (8) (9) (10) . PRI. SEC. HOTOR MOTOR

VOLTAGE VOLTAGE STARTING RUNNING· LOADED, LOADED:- VOLTAGE, VOLTAGE,

% PU % % ;

(7) . NOH. "PRI. VOLTAGE BASE

110.00 1.1269 110.09 100.00 1.0235 99.75 ';·: (8) (9) (10) HOTOR

. HAllEPLATE VOLTAGE SWITCHYARD HIGH VOLTAGE BASE

106.·90 1.0949 106.89

. . ~- ·.~

I ..• I

e e 4.0 Feeder Cables to New Load Centers 2Hl and 2Jl

4.1 Data

Voltage 4 kV nominal.

Cable identification: 2J7PH2 to 2Jl 2H7PH2 to 2Hl

Cable lengths:

Cable type:

Cable impedance:

Cable ampacity:

4. 2 Ampaci ty

2J7PH2 = 60 feet 2H7PH2 = 4o :feet

3/C 500 MCM aluminum cable with aluminum armor 90°c rate 5 kV

0.0461 + j 0.0300 ohms/1000 ft - :from Stone & Webster Cable Impedance Calculations August 24, 1976.

425 amps - :from IPCEA. P-46-426; 1962

Load center 2Jl and 2Hl maximum loa:dings can be taken as their maximum rating on 1,333 kVA. Using lowest allowable bus voltage of' 0.90 x 4000 = 3,600 V. Maximum current= 214 amps •

. This is within cable rated cable rate ampacity of 341 amps.

4.3 Cable Voltage Drop

Cable voltage drop will be calculated on the maximum current obtained in Section 4.2 plus the starting current of the largest motor on this bus.

Largest motor is 2-VS-F-60A, starting current is 509 runps. The equivalent transformer primary current, based on transformer turns ratio, 480/4,056 X-509 = 60 amps. Assume starting power factor of 0.25.

r.ia.xiroum current = 214 amp at 0.85 pf + 60 amps at 0.25 pf'

Maximum current = 274 amps at O. 79 pf'

V = IZ 3 where V = Voltage drop line to line (vector) I = Full load current (vector) Z = Cable impedance (vector)

Cable 2J7PH2

Z = 60 ft X (0.0461 + j 0.0300) ohms/1000 ft Z = 0.0028 + J 0.0018 I= 274 amps at 37.8° I= 216 + j 167.9

V= V = V=

rz../3 (216 + j 167.9) (0.0028 + (0.303 + j 0.859) (1.732)

Voltage drop for cable 2J7PH2 Voltage drop

Cable 2H7PH2

j O .0018) l. 732

= L57 volts = 0. 0379 percent

Since voltage drop is a linear ~unction with impedances a ratio o~ cable lengths will give voltage drop ~or ca.b:le 2H7PH2.

40 ft Voltage drop 60 ft x 1.57 V = 1.05 V or 0.025 percent

' .

APPENDIX A


This appendix is a calculation of the voltage profile for the Unit 24,160 V eriergency buses. The redundant emergency 4,160 V buses 2H and 2J are fed from the Reserve Station Service Transformers Band C, respectively. Reserve Station Service Transformers are supplied from separate 36.5 kV switchyard buses •.

Calculation of light loading and heavy loading conditions on the Reserve Transformer system is used to determine the voltage profile of the 4,160 V emergency buses.

Data for Calculations

1. Reserve Station Service Transformer B

Rating 18,000/24,000/30,000 kVA OA/FA/FA

Nominal 34.5 kV Primary to 4,160 V·Secondary

Impedance= 5.50 percent nominal at 18,0QO kVA

Resistance= 0.393 percent nominal at 18,000 kVA

"No load" primary taps: Tap Tap Tap Tap Tap

Primary tap in use: Tap

Secondary load tap changer

Maximum raise (boost) Neutral Minimun lower (buck)

1 36,200 V 2 35,300 V 3 34,400 V 4 33,500 V 5 32,600 V

3 34,400 V

16 raise steps 16 lower steps

4,670 V 4,154 V 3,740 V

The secondary is currently set to maintain 4,300 Vat the transfer buses with a 30-second time delay.

2. Reserve Station Service Transformer C

All data are the same as Transformer B.

3. Switchyard Voltage Range (swing)

The Reserve Transformers are supplied from 36.5 kV switchyard buses. These buses are fed from 36.5 kV tertiary windings of the 500 kV to 230 kV auto transformers. The present tap setting on the auto transformers primaries is 512,500 V.

,, e e From VEPCO system planning department,

total voltage swing on 500 kV lines:

mini.mum 505 kV maximum 520 kV

4. Maximum power flow from 500 kV grid to 230 kV grid from VEPCO system planning:

real= 660.00 MW reactive= 176.00 MVAR

4 kV Emergency Bus Voltage Profile

Voltage profile calculations were made with Stone & Webster load flow computer program. These computer runs are outlined below:

Run A

Purpose: To determine highest voltage level on the 4,160 V emergency buses 2H and 2J.

Input Conditions 1. Light load on the reserve station service system concurrent with high switchyard grid voltage will result in highest voltage on 4 kV emergency buses. Light load will occur with two units at 100 percent power.

2. Switchyard voltage set at high level of 520 kV.

3. Reserve station i;ervice load tap changes in service and set to maintain 4,300 V on transfer buses.

4. Normal operating loads connected to the 4 kV emergency buses.

Results: The attached computer output results for Run A are summarized below:

4 kV Bus 2H maximum voltage= 1.028 p.u. on 4,160 V base

or 1.069 p~u. on 4,ooo v base

4 kV Bus 2J maximum voltage= 1.028 p. u. on 4,160 V base

or 1.069 p.u. on 4,000 _V base

• • f

I .

Run B

e e Load tap changer ratios required to maintain 4,300 Von T~ansfer Buses D, E, and Funder light load condition were calculated as:

Transformer A Transformer B Transformer C

1.019 raise 1.010 raise 1.022 raise

Purpose: To determine lowest voltage on the 4,160 V emergency Buses 2H and 2J for a unit trip with consequence limiting safeguard signal. Lowest voltage will occur immediately after tripping Unit 2 from 100 percent power and before the reserve transformer load tap changer has moved (30 sec time delay) to raise secondary voltage.

Input: 1. Unit 1 at 100 percent power.

2. Unit 2 tripping from 100 percent power with CLS signal. All lo~ds on Unit 2 normal station service buses transfer to reserve station service transformers, when the unit trips.

3. Load tap changers fixed at taps determined in Run A. This approach takes no credit for the load tap changers moving to increase voltage after the trip.

4. The switchyard voltage was assumed to be at its lowest value (505 kV).

Results: The attached computer output sheets for Run B are SUI!l.I:larized below. Voltages are those for Unit 2 trip with Unit 1 at 100 percent power.

4 kV Bus 2H minimum voltage= 0.9470 p.u. on 4,160 V base

or 0.9848 p.u. on 4,000 V base

4 kV Bus 2J minimum voltage= 0.953 p.u. ~n 4,160 V base

or 0.9911 p.u. on 4,ooo v base

-~ •, :'

n

.-.. u

C

0

V

v

u

""" ~

\..I

\..,.I

PG SURRY RESERVE STATION SERVICE SYSTEH RUN A

BASE CASE LOADFLOH-lOOY. POWER-NORMAL OPERATION-5001(V:l. OIIPU

-

..

e

-. '

-.,

--·._;

..._,

' ~

._.,

.~I

I --· SURRY RESERVE STATION SERVICE SYSTEM

RUN A PG z ~

,-. TRANSHISSION LINE ANO TRANSFORMER ASSEMBLY J .

GROUP 1 INPUT BASE CONVERTED BASE AREA 0 0.0 HV 0.0 HV

O. HVA 100. HVA LINE IWA .TAP TAP-LIMITS

p Q RCPCT) XCPCT) HVAC R CPU> X CPU) BC/2 G B LOAD RATIO THIN TMAX

- .-, 10 12 .1. 79 1.66 o.o 0.0179 0.0166 o.o 30.0351 27.8538 0 12 13 160.00 783.00 o.o 1.6000 7.8300 o.o o.02s1 0.1226 0 0.976 20 22 2.24 2.08 0.0 0.0224 0.0208 o.o 23. 9726 22.2603 0 -- 22 23 160.00 783.00 o.o 1.6000 7.8300 o.o 0.0251 0.1226 0 0.975 · ... ) 30 32 1.43 1.33 0.0 0.0143 0.0133 o.o 37.4954 34.8734 0 30 33 1. 70 1.58 o.o 0.0170 0.0158 o.o 31.5610 29.3331 0 32 34 160.00 783.00 o.o 1.6000 7.8300 o.o 0,0251 0.1226 0 0.975

~ . .i 33 35 160.00 783.00 0.0 1.6000 7.8300 o.o 0.0251 0.1226 0 0.975

7 3 2,04 27.73 o.o 0.0204 0.2773 Q.O 0.2639 3.5868 0 1.000 0.950 1.191 8 3 2.04 28.48 o.o 0.0204 0.2848 o.o 0.2502 3.4933 0 1.000 0.950 1.191 e 9 4 1.90 28.48 o.o 0.0190 0.2848 o.o 0.2332 3.4957 0 1.000 0.950 l.191 3 5 o.o 15. 71 o.o o.o 0.1571 o.o o.o 6.3654 0 ..... _

·._i 2 5 0.0 0.01 o.o o.o 0.0001 o.o o.o 10000.0078 0 ' ,·

1 5 o.o 3.79 o.o o.o 0.0379 o.o o.o 26.3852 0 0.975 l 6 0.0 3.79 o.o o.o 0.0379 o.o o.o 26.3852 0 0.975

0 2 6 o.o 0.01 o.o o.o 0.0001 0.0 o.o . 10000.0078 0 4 6 o.o 15.71 o.o o.o 0.1571 o.o o.o 6.3654 0 ·-· 7 10 0.97 9.25" o.o 0.0097 0.0925 o.o · 1.1213 10.6932 0 a 20 0.97 9. 25 " o.o 0.0097 0.0925 o.o 1.1213 10.6932 0

,._; 9 30. 1.02 8.32v o.o 0.0102 0.0832 o.o 1.4517 ll.Ml3 0 . ·-'

"" ....;

' -v --v

-"-I ....

v --

'-'

I

'!-

SURRY RESERVE STATION SERVICE SYSTEH R.UN A PG 3

.- BASE CASE BUS DATA ENTERED

BUS NAHE IREG EA EB PG QG PL Ql. QMIN QHAX BSR*100 NREGD

'~ .-.,

l 500HV 2 1.040 o.o 0.0 0.0 0.0 o.o -1000.00 1000.00 o. 0 2 230HV l 0.970 o.o o.o 0.0 660.00 176.00 o.o 6.o o. 0 3 36.5HV l 0 1.000 0.0 o.o 0.0 7.74 4.18 o.o 0.0 o. 0

0 4 36.SHV 2 0 1.000 o.o 0.0 o.o 7.74 4.18 0.0 0.0 o. 0 -5 TRANS l 0 1.000 . 0.0 o.o o.o o.o 0.0 0.0 o.o o. 0 6 TRANS 2 0 1.000 o.o o.o o.o 0.0 o.o o.o 0.0 o. 0 7 4.16 A 0 1.030 0.0 0.0 o.o 0.0 0.0 o.o o.o o. 0

.-, 6 4.16 B 0 1.030 o.o 0.0 o.o 0.0 0.0 0.0 0.0 o. 0 ,.; 9 4.16 C 0 1.030 o.o o.o 0.0 !!.O 0.0 0.0 o.o 0. 0

10 BUS D 0 1.000 o.o o.o o.o 0.0 o.o 0.0 o.o 0. 0 20 BUSE 0 1.000 o.o o.o o.o 0.0 o.o 0.0 o.o o. 0 e ·:) 30 BUS F 0 ~.000 o.o 0.0 o.o o.o 0.0 o.o o.o o. 0 12 BUS lJ 0 1.000 o.o 0.0 0.0 1. 2'6 0.66 o.o o.o . o. 0 22 BUS 2H 0 1.000 o.o o.o 0.0 1.30 0.70 o.o o.o o. 0 32 BUS lH 0 1.000 o.o o.o o.o 1.31 o. 71 o.o 0.0 o. 0

0 33 BUS 2J 0 1.000 o.o o.o o.o 1.26 0.66 o.o 0.0 o. 0 13 BUS lJl 0 1.000 o.o 0.0 o.o 0.63 0.39 o.o o.o o. 0 23 BUS 2Hl 0 1.000 o.o o.o o.o O.LH 0.29 0.0 0.0 o. 0 34 BUS lHl 0 1.000 o.o 0.0 o.o 0.56 0.35 o.o 0.0 o. 0

0 35 BUS 2Jl 0 1.000 o.o o.o o.o 0.33 0.20 o.o o.o o. 0

0

;;_; -.. ' -.._;

u

'..J .

-'-I .. ,,,.,!:.

\..I

--

II

-.-.. '1·,.·'

.. - •. •.J

,., .

,_ ...,,

SURRY RESERVE STATION SERVICE SYSTEM

A COMBINATION OF SOLUTION TECHNIQUES

* OPTIONS IN EFFECT ARE AS FOLLOHS * ORDERING.

FLAT VOLTAGE START

GAUSS-SEIDEL -- NEHTON-RAPHSON

CONTROL PARAMETERS

CUTOFF GAUSS/ DCLF HAXIMUH LOOSEN SKIP P.U. POWER P.U. VOLT ITERATIONS ITERATIONS TAP CHANGE CRITERIA VAR CHECK TOLERANCE TOLERANCE

10 60 7 10

THE SOLUTION HAS FAILE· 1 TO CONVERGE IN 60 ITERATIONS,

ESTUIATED NO. OF OFF-DIAGONAL ELEMENTS: 16

0 0.0010 0.0010

-,._ ..

-..

·--· '

.....,

·-

....

·-~

I

----- ----

RUN A PG ,. SURRY RESERVE STATION SERVICE SYSTEH

:)

-- . . i:IECORD OF CONVERGENCE

-- ITERATION HATRIX RESIDUES RESIDUES ERROR NO. LTC REG. BUS --COUNT SIZE IN MH IN MVAR COUNT ADJ EXC. LIM

0 0 1779.616 353.893 15 0 0 ·,'

l 147 2.464 58.287 4 0 0

......... 2 147 0.361 l.310 3 3 0 ,_,., 3 147 O.lill 2.673 5 0 0

4 147 0,224 2.713 3 0 0 -·· ~ ....... 5 147 0.208 2.545 3 0 G

6 147 0.129 1.769 3 0 0 -- 7 147 0.308 3.047 3 0 0

8 147 · 0.123 l.348 3 0 0 ._.., 9 147 0.080 0.583 l 0 0

10 147 0.445 2.503 0 0 0 -._.I

-·-· --

-- .-. ...)

0

: -;

0

..... ......

_,..·---;-, fl


S U H H A R Y O F G E N E R A T O R L O A D I N G

BUS NAME VOLTS ANGLE

SHING l 500l<V 1.040 90.0

l 5001<V l.040 90.0

-

--

GENERATION LOAD HH Ml/AR HH MVAR

682.59 278.63 0.0 0.0

682.59 278.63 0.0 0.0

GENERATION SUMMARY MH

682.59 GENERATION + LINE CHARGING + SHUNT CAPACITORS + SHUNT REACTORS

TOTAL GENERATION TOTAL LOAD

INTERCHANGE

LOSSES

682.59 682.60

0.0

-0.0l

REQ'D HVAR LIMITS VOLTS HINIMUH MAXIMUM

HVARS

278.63 o.o 0.0 0.0

278.63 188. 36

0.0

90.27

RUN A PG 6

.-. e

-

u

-· V

v I

VI

V

V

~,

-{ I

-. ' . . •' -'i.. •• )

0

V

V

--

I

SURRY RESERVE STArioN SERVICE SYSTEM

-

-. ""

LINE FROM TO

1 5 l 6 7 3 8 3 9 4

12 13 22 23 32 34 33 35

,, ·,.:':~·

AREA

0 0 0 0 0 0 0 0 0

T R A N S F O R H E R

TAP-SIDE BUS LINE NO. NAME VOLTS HW

1 SOOKV 1.040 341.29 l SOOKV 1.040 341.29 7 4.16 A 1.030 -1.69 8 4.16 B l.030 -1. 77 9 4.16 C l.030 -3.47

12 BUS lJ 1.028 0.64 22 BUS 2H 1.026 0.47 32 BUS lH 1.028 0.57 33 BUS 2J 1.028 0.33

\. ~'

S U If H A R Y

FLOW PCT REQ 1D TAP MVAR LOAD VOLTS RATIO

139.32 0 0.975 :'.'!9.32 0 0.975 -1.ll 0 1.030 l.019R -1.01 0 l.OJO l.019R -1.99 0 1.030 l.022R

0.43 0 0.975 0.31 0 0.975 0.38 0 0.975 0.21 0 0.975

TAP LIMITS PHASE MINIMUM HAXIMUH SHIFT

0.950 l.191 0.950 1.191 0.950 1.191

····.,.,.

RUN A PG 7 -

-i

--·_

·,_I

:!

I. 1-

~~

.... .,

;

SURRY RESERVE STATION SERVICE SYSTEH

R E P O R T O F L O A D F L O H CAL-CUL AT IONS TOTAL ITERATIONS: 10, SHING BUS: l

-X------------------------- 8 U S - D A T A -------------------------X------------- L I N E - F L O H --------------X GENERATION LOAD CAP/REC TO TAP OR PCT

BUS NAHE VOL TS ANGLE MH HVAR HH HVAR . IWAR BUS AREA NAME · HH HVAR PHASE LOAD

1 SOOKV 1,040 90.0 682.6 278.6 o.o o.o

2 230KV 1,024 83.2 0.0 o.o 660.00 176.00

· 3 _36.SKV l 1.014 82,2 o.o o.o 7.74 4.18

4 36.SKV 2 1.015 82.2 o.o o.o 4.18

S TRANS 1 1.024 83,2 o.o o.o o.o o.o

6 TRANS 2 1,024 83.2 o.o o.o o.o o.o

7 4,16 A 1,030 81.9 o.b o.o o.o o.o

8 4,16 B 1,030 81,9 0,0 o.o 0,0 o.o

9 4,16 C 1,030 81,7 o.o o.o 0,0 o.o

o.o

o.o

0.0

o.o

o.o

o.o

o.o

o.o

o.o

------------- ·-----------------------------------S O TRANS i 6 0 TRANS 2

MISMATCH

5 6

0 TRANS l 0 TRANS 2

MISMATCH

341. 29 341. 29

0.0

-330.00 -330,18

0.17

139.32 0.975 139.32 0.975 -0.00

-88.45 -88.42

0.87

----------------------- .-------------------------5 0 TRANS l 7 O 4.16 A 8 0 4.16 B

MISMATCH

6 0 TRANS 2 9 0 4.16 C

MISMATCH

-11.41 1.89 l. 77 0.00

-11.21 3.47 o.oo

-6.35 1.13 1.03 0.01

-6.22 2.04 0.01

--------·----------------------------------------1 2 3

l 2 4

0 500HV 0 230HV 0 36.SHV l

MISMATCH

0 SOOHV 0 230HV 0 3"6.5HV 2

MISMATCH

3 0 36.5HV l 10 0 BUS D

MISMATCH

3 0 36.SKV l 20 0 BUSE

MISMATCH

-341.29 330.00

11.41 -0.11

-341.29 330.18

11.21 ,. ::0,10

-1.69 1.90

-0.01

-1. 77 1,78

.. 0.01

-94.05 68.56

6.61 -1.11

-94.05 88.53 6,46

-0,96

-1.11 l.019R 1.11 0,00

•l.01 l,019R l,01 o.oo

~----------------------------------------·-------4 0 36.SKV 2 30 0 BUS F

MISMATCH

-3.47 3,47

.. 0.01

•l,99 l.022R 1,99 o.oo

1 _ 10 BUS D I •.

1,029 81,8 o.o o.o o.o o.o o.o 7 0 4,16 A -1.90

1,90 -o.oo

-1.11 1,11

~o.oo -12 BUS lJ 1,028 81 .• 8 o.o o.o 1,26

--- 13 BUS lJl 1,014 79,5 o.o o.o 0,63

-

o •. 68 o.o

(1,3? o.o

12 0 BUS lJ MISI-IATCH

~---~-~------~-----------------------·----------· 1.0 0 BUS D ll O BUS lJl

ttISI-IATCH

12 0 BUS lJ MISMATCH

-1.90 0,64 0,00

-0.63 -o.oo

-1.11 0.43 0,97S

-o.oo

-0.39 -o.oo

RUN A PG 8 . .

.·--

-··

• V

._)

•! I

. i • i

I . !

0

Q

0

0

0

0

0

V

.._,,

1.·~

~.

II

-

-..


REPORT 0 F L O A D F L O H CALCULATIONS TOTAL ITERATIONS= 10, SHIHG BUS= l

·x------------------------ BUS - D AT A -------------------------x------------- L I N E - F L 0 H --------------K GENERATION LOAD CAP/REC TO TAP OR PCT

BUS NAHE VOLTS ANGLE HH HVAR HH HVAR HVAR BUS AREA NAHE HH HVAR PHASE LOAD

20 BUS E 1,029 81.9 o.o o.o o.o o.o o.o -------------------------------------------------8 0 4.16 B -1.78 -1.01 22 0 BUS 2H l. 78 1.01

HISHATCH -0.00 -o.oo 22 BUS 2H 1,028 81.9 o.o o.o 1.30 0.70 o.o -------------------------------------------------20 0 BUS E -1.78 -1.01

23 0 BUS 2Hl 0.47 0.31 0.975 MISMATCH o.oo. -0.00

23 BUS 2Hl 1.025 80,l o.o o.o 0.47 0.29 o.o ---------------------~---------------------------22 0 BUS 2H -0.47 -0.29 HISHATCH o.oo o.oo

30 BUS F l,02~ 81,6 o.o o.o o.o o.o o.o -------------------------------------------------9 0 4.16 C -3.47 -1.98 32 0 BUS lH 1.88 1,09 33 0 BUS 2J 1.59 0.89

MISMATCH o.oo -0.00 32 BUS lH 1,028 81,5 o.o o.o 1.31 0,71 o.o -------------------------------------------------30 0 BUS F -1.88 -1.09

34 0 BUS lHl 0,57 0.38 0.975 MISMATCH -0.00 -0.00

33 BUS 2J 1.028 81,5 o.o o.o 1.26 0.68 o.o -------------------------------------------------30 0 BUS F -1.59 -0.89 35 0 BUS 2Jl 0.33 0.21 0.975

MISMATCH -0.00 -0.00 34 BUS lHl 1,018 79,5 0.0 o.o 0.56 0,35 o.o --------- ·--------------------.------------------32 0 BUS lH -0.56 -0.35

MISMATCH -o.oo -0.00 35 BUS 2Jl 1,034 80,4 o.o o.o 0.33 0,20 o.o ------~------------------------------------------33 0 BUS 2J -0.33 .. 0.20

MISMATCH -o.oo -o.oo

-RUN A PG '9!

;'t ' .

e

---

v_

J

I


r p

r 0

NO, OF CUTOFF ITERATIONS ITERATIONS

10 500

TOTAL HISHATCH REAL ntAG -o.o -1.2

TOLERANCES ACCELERATION REAL IMAG REAL IMAG

0.0100 0.0100 0.60 0.80

HAXIMUH HISHATCH REAL IMAG 0.2 1.1

2 5

NUMBER OF BUSSES ACTUALLY IN USE= 20

10 I

. ...

-'-'

0

v.

V

-y

V

·-.. \ -.. , ... ,

NO.OF LINES TOTAL HAX.

20 3000

tlO.OF BUSSES NO.OF XFHRS TOTAL HAX. TOTAL HAX,

JS 2000 9 500

SYSTEH GENERATION TOTAL SYSTHt LOAD HH HVAR HH HVAR

682.59 278.63 682.60 188.36

RUN A

NO.OF LTCS TOTAL MAX.

NO.REG.BUSSES TOTAL HAX.

J JOO 0 500

TOTAL LINE FLOHS HH HVAR 0.03 91.47

PG 10

.-..

C)

e 0

0

0

e ---.I

-·..._;

SURRY RESERVE STATION SERVICE SYSTEH RUN B

UNIT 2 TRIP H/LOCA ;UNIT l AT lOOY. PHR BUS l=l.Oi FIXED TAPSl

V

-._

V

-.. \..,

';;_;,

I

PG I

-

.-.

... .,

·, h

-'

-.....,,

"' i....,I

,.,_..,,.,• (: II

PG 2 i•

RUN 8 SURRY RESERVE STATION SERVICE SYSTEM - TRANSMISSION LINE AND TRANSFORMER ASSEMBLY --

~: - ·,

GROUP l INPUT BASE CONVERTED BASE AREA 0 0.0 l<V 0.0 l<V

,--. 0, MVA 100. MVA· -LINE MVA TAP TAP-LIMITS

p Q RIPCT> XIPCT) l<VAC R (PU) X (PU) BC/2 G ·e LOAD RATIO THIN THAX

-1·-·i 10 12 1.79 1,66 o.o 0.0179 0.0166 o.o 30. 0351 27.8538 0 "

I . 12 13 160.00 783.00 0.0 1.6000 7.6300 o.o 0.0251 0.1226 0 0.975 20 22 2.24 2.08 o.o 0.0224 0.0208 o.o . 23.9726 22.2603 0 -. 22 23 160.00 783.00 o.o 1.6000 7.6300 o.o 0.0251 0.1226 0 0.975 ·-. , -.;, 30 32 1.43 1.33 o.o 0.0143 0.0133 o.o 37.4954 34.8734 0 30 33 1. 70 l.58 o.o 0.0170 0.0158 o.o 31.5610 29.3331 0 32 34 160.00 783.00 0.0 1.6000 . 7.8300 o.o 0.0251 .0.1226 0 0.975 -, 33 35 160.00 783.00 o.o 1.6000 7.8300 o.o 0.0251 0.1226 0 0.975

..... J 7 3 2,04 27.73 o.o 0.0204 0.2773 0.0· 0.2639 3.5868 0 l.019 e 8 3 2.04 28.48 o.o 0.0204 0,28L!8 o.o 0.2502 3.4933 0 l.019 9 4 l.90 28.48 0.0 0.0190 0.2848 0.0 0.2332 3.4957 0 l.022

0 3 5 o.o 15.71 o.o o.o 0.1571 0.0 0.0 6.3654 0 2 5 o.o 0.01 o.o o.o 0.0001 0.0 o.o 10000.0078 0 1 5 0.0 3.79 o.o o.o 0.0379 0.0 o.o 26.3852 0 0.975 1 6 o.o 3.79 0.0 0.0 0.0379 0.0 o.o 26.3852 0 0.975

0 2 6 0.0 0.01 o.o 0.0 · 0.0001 o.o o.o l0000.0078 0 ., 4 6 0.0 15. 71 0.0 o.o 0.1571 0.0 o.o 6.3654 0

._.)

ii 7 10 0.97 9.25 o.o 0.0097 0.0925 o.o l.1213 10.6932 0 6 20 0.97 9.25 o.o 0.0097 0.0925 o.o 1.1213 10.6932 0

0 9 JO i.02 8.32 o:o 0.0102 0,0832 0.0 1.4517 11.8413 0 . .;_)

-, V -...I

V -.....,; -.._,

,....,,

-I'-' I • 1 ••.

V

1 · '-:

1....,;.

1 ·

n , ·'

RUNB PG 3 ~

SURRY RESERVE STATION SERVICE SYSTEH BASE CASE BUS DATA ENTERED

BUS NAME IREG EA EB PG QG PL QL QMIN QMA>C 8SR*100 NREGD

l 500KV 2 l.010 o.o o.o 0.0 0.0 0.0 -1000.00 1000.00 o. 0 2 230KV 1 0.970 0.0 0.0 o.o 660.00 176. 00 0.0 o.o o. 0 3 36.5KV l 0 1.000 o.o 0.0 0.0 7.74 4.18 0.0 o.o o. 0 4 36.SKV 2 0 1.000 o.o o.o o.o 7.74 4.18 0.0 o.o o. 0 5 TRANS l 0 1.000 o.o o.o 0.0 0.0 0.0 0.0 o.o o. 0 6 TRANS 2 0 1.000 o.o 0.0 0.0 o.o 0.0 o.o 0.0 o. 0 7 4.16 A 0 1.030 o.o 0.0 0.0 7.83 4.23 0.0 o.o o. 0

I I 8 4.16 B 0 l.030 o.o 0.0 o.o 9.84 5.31 0.0 o.o o. 0 ..,.,, 9 4.16 C 0 1.030 o.o 0.0 0.0 10.11 5.116 0.0 o.o o. 0

10 BUS D 0 1.000 0.0 o.o 0.0 0.0 0.0 o.o 0.0 o. 0 , 20 BUSE 0 1.000 o.o 0.0 0.0 o.o o.o o.o o.o o. 0 -.:;i 30 BUS F 0 1.000 o.o o.o 0.0 0.0 0.0 0.0 0.0 o. 0

12 BUS lJ 0 1.000 o.o o.o o.o . 1.26 0.68 0.0 0.0 . 0 • 0 22 BUS 2H 0 1.000 0.0 0.0 0.0 2.58 1.60 0.0 o.o o. 0 32 BUS lH 0 1.000 0.0 o.o 0.0 1.31 o. 71 0.0 0.0 o. 0 33 BUS 2J 0 1..000 0.0 o.o 0.0 2.44 1.52 0.0 0.0 o. 0 .,,

._; 13 BUS lJl 0 1.000 0.0 0.0 0.0 0.63 0.39 0.0 0.0 o. 0 23 BUS 2Hl 0 1.000 o.o 0.0 o.o 0.0 0.0 0.0 o.o o. 0 34 BUS lHl 0 1.000 o.o 0.0 o.o 0.56 Q.35 0.0 0.0 0. 0

.._, 35 BUS 2Jl 0 l.!!00 o.o 0.0 0.0 o.o 0.0 o.o o.o o. 0 '

~

;,.., ..... ,..

._.. e

....,)

V. .. -

"-'.

v

-V ~

-: ... ;.~

.--. . l

V


A COMBINATION OF SOLUTION TECHNIQUES

* OPTIONS IN EFFECT ARE AS FOLLOHS * ORDERING

FLAT VOLTAGE START

GAUSS-SEIDEL -- NEHTON-RAPHSON

CONTROL PARAMETERS

CUTOFF GAUSS I DCLF HAXIHUH LOOSEN SKIP P.U. POHER P.U. VOLT ITERATIONS ITERATIONS TAP CHANGE CRITERIA VAR CHECK TOLERANCE TOLERANCE

10 90 7 10 0 0.0010 0.0010

THE SOLUTION HAS FAILED TO CONVERGE IN 90 ITERATIONS.

ESTIHATED NO. OF OFF-DIAGONAL ELEMENTS: 18

RUN B PG 4.

e

._

e

l I I

RUN B PG 5 SURRY RESERVE STATION SERVICE SYSTEH

C,1 ·""' RECORD OF CONVERGENCE

C, ITERATI°ON HATRIX RESIDUES RESIDUES ERROR NO. L TC REG. DUS ~ COUNT SIZE IN Ml~ IN HVAR COUNT ADJ EXC. LIH

0 0 0 906.856 183.210 15 0 0 ~

1 147 1.866 17.455 3 0 0

0 2 147 0.098 0.584 2 0 0 ;.I

3 147 0.121 0.328 2 0 0

0 4 147 0.129 0.771 3 0 0 --· ····"' 5 147 0.127 0.983 3 0 0

0 6 147 0.176 0.344 2 .. 0 -..,

u ·,.,._/

7 147 0.085 0.672 3 0 0

0 8 147 0.030 0.317 l 0 0 \.,._,,,

9 147 0.121 0.452 2' 0 0

0 10 147 0.114 0.589 0 0 0 '-"''

. ...., ·...._;

I;.., ev u V

0 -'

-v ._;

'v '.._)

-v V

"'f.)

II I

r-... ... .,

-..... , 0

C

~-. .....,;

~

u

-..


SHING

BUS NAHE

l SOOHV

l SOOHV

S U H H A R Y O F G E N E R A T O R L O A D I N G

GENERATION VOLTS ANGLE HH HVAR

1.010 90.0 ·712.08 315.~l

l.010 90.0 712.08 315.31

LOAD MN HVAR

0.0

0.0

REQ I D HVAR LIMITS VOLTS HINIMUH MAXIMUM

GENERATION SUMMARY

0.0

0.0

HH HVARS

315.31 o.o 0.0 0.0

GENERATION + LINE CHARGING + SHUNT CAPACITORS + SHUNT REACTORS

TOTAL GENERATION TOTAL LOAD

INTERCHANGE

LOSSES

712.08

712.08 712. 04

0.0

315.31 204.61

o.o

0.04 110.70

I RUN B PG G

......

e

........ u

0

V

I G

SURRY RESERVE STATION SERVICE SYSTEH RUN B PG 7 0

T R A N S F O R H E R SUHHARY

n LINE TAP-SIDE BUS LINE FLOH PCT REQ 1D TAP TAP LIMITS PHASE

FROH TO AREA NO. NAME VOLTS MN HVAR LOAD VOLTS RATIO HINIHUM MAXIMUM SHIFT

0 l 5 0 l SOOl<V 1.010 356.05 157.66 0 0.975 l 6 0 l 500HV l.010 356.03 157.65 0 0.975 7 3 0 7 4.16 A 0.956 -9. 73 -5.36 0 1.019 a 3 0 a 4.16 B 0.950 -12.42 -6.92 0 1.019 9 4 0 9 4.16 C 0.957 -14.43 -8.10 0 1.022

12 13 0 12 BUS lJ 0.955 0.64 0.44 0 0.975 --., 0

22 23 0 22 BUS 2H 0.947 o.oo o.ou 0 0.975 32 34 0 32 BUS lH 0.954 0.57 0.39 0 0.975 33 35 0 33 BUS 2J 0.953 0.00 0.00 0 0.975

0

C ,. .. .... '"· ... · '

V

V --1~ -I

-· ·--··- ,,

.-\',. SURRY RESERVE STATION SERVICE SYSTEM

R E P O R T O F L O A D F L O H CALCULATIONS TOTAL ITERATIONS: 10, SHING BUS: l

X------------------------ BUS - DAT A -------------------------X------------- LINE - FLO H- -· ------------X ~- GENERATION LOAD CAP/REC TO TAP OR PCT

I

i I.

---...

-'--"

0

0

u

I •.

'\,.;

V

1:~ I':. 1-· v

BUS NAME VOLTS ANGLE MH HVAR HH MVAR HVAR BUS AREA NAME HH HVAR PHASE LOAD

l 500KV 1.010 90.0 712.l 315.3 0.0 0.0

2 230KV 0.987 82.4 o.o 0.0 660.00 176.00

3 36.51{\1 l 0.957 79.6 o.o o.o 7.74 4.18

4 36.SKV 2 0.965 80.3 0.0 o.o 7.74 4.18

5 TRANS l 0.987 82.4 o.o o.o o.o o.o

6 TRANS 2 0.987 82.4 o.o o.o o.o o.o

7 4.16 A 0,956 77.9 o.o o.o 7.83 'J.23

Q.O o.o 9,84 5.31

9 4.~6 C 0,957 77.8 o.o o.o 10.11 S,'16

.. 10 BUS D 0,955 77.8 0,0 o.o o.o o.o

12 BUS lJ ·0.95S 77,8 o.o 0,0 1.26 0,68

-- 13 BUS lJl 0,934 75.l o.o o.o 0.63 0,39 -

0.0

o.o

0.0

o.o

o.o

o.o

o.o

0,0

o.o

o.o

o.o

o.o

5 0 TRANS l 6 0 TRANS 2

MISMATCH

5 6

0 TRANS l 0 TRANS 2

MISIIATCH

5 0 TRANS l 7 0 4.16 A 8 0 4.16 B

6 9

l 2 3

HISMATCH

0 TRANS 2 O 4.16 C

MISMATCH

0 500HV 0 230HV 0 36.5KV l

MISMATCH

356.05 356.03

0.0

-326.14 -333.87

0.02

-29.97 9.76

12.47 o.oo

-22.23 14.49 o.oo

157.66 0.975 157,65 0.975 -0.00

-85.52 -90.54

0.05

-17.51 5,74 7.58 o.oo

-13.17 8.99 o.oo

-356.05 -104.11 326.14 85.63

29.97 19.57 -0.06 -1.09

-----------------·--------------------------------l O 500KV -356.03 -104.10 2 0 230.HV 333.87 90.66 4 0 36.5KV 2 22,23 14.30

MISMATCH •· ··· •0,08 -0.86

3 0 36,SKV l 10 0 BUS D

MISMATCH

3 0 36.SKV 1 20 0 BUSE

MISMATCH

-9.73 1.90

-o.oo -12.'42

2.S8 o.oo

-5.36 1.019 1.13

-o.oo .. 6.92 1,019 1.61 o.oo

4 0 36,5KV 2· -14.43 -8.10 1.0.22 2.64 .· 30 0 BUS F 4,32

HISMATCH -0,00

7 0 4,16 A 12 · 0 BUS lJ

MISMATCH

10 0 BUS D 13 0 BUS lJl

MISMATCH

-1.90 l,90

-o.oo -1.90 0.64

-o.oo

-o.oo -l,12 1.12 0,00

-1.12 0,44 0.975

.. Q.00

12 0 BUS lJ ·-0.63 -0,39 MISMATCH 0,00 0.00

RUN P PG 8

--.· )

-.,,

--

·-· _ ..

1111

SURRY RESERVE STATION SERVICE SYSTEH r

REPORT OF LO AD FLO H ·CAL CUL AT IONS TOTAL ITERATIONS= 10, SHING BUS= l

X------------------------ BUS - DAT A -------------------------X------------- LINE - FLO H --------------X .-., GENERATION LOAD CAP/REC TO TAP OR PCT

'-'

...._;

V

'-'

V

'-'

v

-.. ..__.

BUS NAHE VOL TS ANGLE MH HVAR HH HVAR 'MVAR BUS AREA NAHE HH HVAR PHASE LOAD

20 BUSE 0.948 77.2 o.o o.o 0.0

22 BUS 2H 0.947 77.2 0.0 o.o 2.56

23 BUS 2Hl 0.972 77.2 o.o 0.0 o.o

30 BUS F 0.954 77.6 o.o o.o o.o

32 BUS lH 0.954 77.6 o.o 0.0 1.31

33 BUS 2J 0.953 77.6 0.0 o.o 2.44

34 BUS lHl 0.938 75.2 o.o 0.0 0.56

35 BUS 2Jl 0.978 77.6 o.o o.o o.o

o.o

1.60

o.o

o.o

o. 71

1.52

0.35

o.o

0.0

0.0

o.o

o.o

o.o

0.0

o.o

8 0 4.16 B 22 0 BUS 2H

MISMATCH

20 0 BUSE 23 0 BUS 2Hl

MISMATCH

22 0 BUS 2H MISMATCH

9 0 4·.16 C 32 0 BUS lH 33 0 BUS 2J

MISMATCH

30 0 BUS F 34 0 BUS lHl

MISMATCH

30 0 BUS F :S5 0 BUS 2Jl

.MISMATCH

-2.58 2.58

-0.00

-2.58 o.oo

-0.00

-0.00 o.oo

-4.32 1.88 2.44 o.oo

-1.68 0.57

-0.00

-2.44 o.oo o.oo

32 0 BUS lH -0.56 MISMATCH, . 0. 00

-1.60 1.60

-0.00

-1.60 0.00 0.975

-0.00

-0.00 o.oo

-2.62 1.10 1.52 o.oo

-1.10 0.39 0.975

-0.00

-1.52 o.oo 0.975

-o:oo

-0.35 o.oo

o.o -------------------------------------------------33 0 BUS 2J MISMATCH

··c

-0.00 o.oo

-0.00 o.oo

RUN B PG 9 .

•

e

- -· ·-

·~

u


NO. OF CUTOFF TOLERANCES ACCELERATION ITERATIONS ITERATIONS REAL !HAG REAL !HAG .- 10 500 0.0100 0.0100 0.80 0.80

TOTAL HISHATCH HAXIMUH HISHATCH REAL !MAG -0.1. -1.9 i- REAL !HAG

0.1 1.1 6 5

NUMBER OF BUSSES ACTUALLY IN USE= .20

-•...) -._)

._,

... I,,,./

'..I

-.....)

._..

-'-"

.. -· -.. _ ..

~··----

NO.OF LINES TOTAL MAX.

20 3000

NO.OF BLISSES tm.oF XFMRS TOTAL MAK. TOTAL MAX.

35 2000 9 500

SYSTEH GENERATION TOTAL SYSTEH LOAD HH HVAR MH HVAR

712.08 315.31 712.04 204.61

NO.OF LTCS TOTAL MAX.

0 300

NO.REG.BLISSES TOTAL MAX.

0 500

TOTAL LINE FLOl~S HH HVAR 0.16. 112.61

RUN B PG 10 I) '~ . .,

-. ·-

e

-'-'

' i -· i

-e. ._

V

·J

._/

..,,) '

•

APPENDIX B

TABULATION OF LOADS 480V VOLT EMERGENCY POWER SYSTEM

SURRY - UNIT 2

• > T

·-;.·1

SECTION NO.

5-C

1-D

1-E

1-F

2-Dl

2-i>2

3-D

·4-Al

4-A2

· 4-Bi

4-B2

4-E

5-A

5-Bl

5-B2

1-C

5-D

5-E _

6-A

6-E

7-D

1-B

8-D

.e e ..

480V UNIT SUBSTATION "2Hl!'

TABULATION OF LOADS

KVA LOAD LOCA MOTOR CONTROL CENTER 2Hl-l

DESCRIPTION OF LOAD W /LOOP - LOOP

Feeder to MCC 2Hl-1A (attached list)

Control Room Erner. ~upply F~n 2-VS-F-41

Charging Pump Serv4 Wtr Pp 2-SW-P-lOA

480V Pwr Receptacle

24.7 24.7

(1)

8

Radiation Monitoring (2-SKVA XFMRS) 5

Vital Bus (1-IOKVA XFMR) 5

Control and Relay Rm A/C Cond pp 2-VS-P-lC 14.5

Chilled Wtr A/C l-VS~AC-2

Chilled Wtr A/c·t-VS-AC-6

Chilled Wtr- A/C 2-VS-AC-6

Chilled Wtr A/C 2-VS-AC-8

... •:· .. ;

11.2-- -

11.2

- 7.1

7.8

A/C Chiller Pp l-VS-P-2C 19.9 .

Control and Relay Rm Wtr Chiller l-VS-E-4C 95.6

Battery Charger 2A-l 38.8

Battery Charger 2A-2 (2)

Charging Pp Cooling Wtr Pp 2-cc..:.P-2A 11.2 .

Emer. Generator Fuel Oil Pp 1-EE-P-lB 1.1

Cont. & Rel. Rm Group #1 Filter 1-VS-~l:S- 1.1

Safeguar_ds · Cond.- Pp 2-HS-P-3B

Relay Rm Emer. Supply Fan 2-VS-F-42

Seal Oil Back-up Pp

Heat Tracing .( 1-ISKVA XFMR)

Turning Gear Oil Pump

TOTAL-

(1) -- Manual start 60 min fol:loving LOCA

(1)

25.5

- 7.5

59.8

355

. -(2) Assumed single chatger operating at jull load •.

-8

5

5

14.5

11.2

11.2

7.1

7.8

19.9

95.6

19.4

(2)

11.2

1.1

1.1

25.5

1.5 ·

59.8

335.6

LOCA

24.7 -

(1)

8

5

5

14.5

11.2

-11.2

7.1

7.8

19.9

95.6·

38 8

(2)

11.2

l~l

(1)

25.5

7.5

59.8

· 355

0

SECTION NO.

1-A

1-B

1-C

1-Dl

l-E2

l-D2

1-El

e 430V UNIT SUBSTATION "2Hl"

TABULATION OF LOADS

MOTOR CONTROL CENTER.2Hl-1A DESCRIPTION OF LOAD

Incoming Line Section

Air Compressor No. -1

Air Compressor No. 2

Battery Charger

Diesel Generator Controi Cab.

480V Power Receptacle

KVA LOAD LOCA W/LOOP

8.76

8. 76

(1)

-3.75

LOOP

. 8.76,

8.76

3.45.

(1)

LOCA

8.76

8.76

3.45

(1)

Lighting Cabinet (1-7.5 KVA XFMR)

TOTALS · 24.7

_ 3.75

24.7

3.75

24. 7

(1) Not required when diesel running

--· - - -· . -- ·- - - _·.

: ~ _: ____ - .. ~- -· . - ------: -_·.:...:.·=--· :--· __ -~-

,,, ___ -=----. - -. ...: . - . - . -- ::.. -~:-:-_ - . __ · -_ .. .:_:·-:-

.. ~ .... ' .,.,, ·-

SECTION NO.

SOUTH

2-D

5-Dl

·s-02

9-A

10-A

NORTH

1-D

2-A

·2-0

3-A

4-A

4-D

5,..A

5-D

6-A

6-E

7-A

7-E

e· 480V UNIT SUBSTATiON "2Hl"

TABULATION OF LOADS

MOTOR ·coNTROL CENTER 2H1-2 DESCRIPTION OF LOAD

Boron Inj. Tank Heaters 2-SI-TK-2

480V Pow~r Receptacle

Hydrogen Recombiner A

Gaseous Waste Blower 20GW-C-3A

Boric Acid"Trans Pp 2-CH-P-2C

.. Charging Pp Aux. Oil Pp 2-CH~P-lA

Aux. ·reed~ater Pp Motor Heater

Containment Vac. Pp 2-CV-P-1A.

Emer. Generator Fuel Oil Pp 2-EE-P~lE

Safeguard Area Sump Pp 2-DA-P-lA

Recirc. Spray.Pp Motor Htr.

•

Cont. Spray Pp Motor Htr (2-CS-P-lA Motor)

Safeguards Area Exh. Fan 2-VS-F-40A

LHSI Pp Motor Htr (2-Sl-P-lA Motor)

Recirc. Spray_ Pp _Motor Htr

Boric Ac.id Tank A Htr 2-CH-E~6A

Boric Acid Tank C Htr 2-CH-E-6C

LOCA

·. W/LOOP

3

14.3

(l)

1.3

8.7

·7.5·

7.5

KVA LOAD

LOOP

3

14.3

2

1.4

(I)

1.3

2

2

8.7

2

2

7.5-

7.5·

LOCA

3

14.3

(1)

1.3

8.7

1.5

7.5

I

..

SECTION NO.

NORTH

8-Dl

·s-n2

10-D

11-C

11-D

,· e ft 480V ·uNIT SUBSTATION "2Hl"

TABULATION OF LOADS .

MOTOR CONTROL CENTER 2H1-2 DESCRIPTION OF LOAD

4KV Bus 2J. Heater

Incore Instrument Drive D

Emer. F.W. Make-up Pp 2-FW-P-4A

Control Rod Cooling ·Fan 2-VS-F-60A

Control Rod Cooling Fan 2-VS-F-60F

TOTAL

KVA LOAD LOCA W/LOOP .· LOOP

7.5

73.3 · . 73.3

· 73.3 73.3 ---188.9 207.8

(1) Assumed single· P.ll:mp operating, 1-EE-P-IB from- MCC. 2Hl--l • • f ...

. :c ;

•.;1, '.' .--

LOCA --

.. ·' .. -

-· 73.3

73.3 --188.9

· I

.~ ____ ., ..... -· ... ·. . . . -

.!·l ._, '~· .,.... ~ -.. ll't ""

,('

SECTION NO.

1-C

2-A

3-Al

3-A2

4-Al

4-A2

4-D

4-E

5-Cl

5-C2

5-E

. 6-B

6-D

6-E

7-Dl

• I • --· e 480V UNIT SUBSTATION "2Jl"

TABULATION OF LOADS

MOTOR CONTROL CENTER 2Jl-l DESCRIPTION OF LOAD

Turning Gear Motor

Inst. Air Comp 2-IA-C-l

Rad Monitoring

Vital Bus II - IV FDR

Inst. Air Dryer 2-IA-D-l

RSS Trans Fdr.

Erner. Gen F.O. Pump 1-EE-P-!F

Charging Pp Cooling Wtr Pump 2)-CC-P-2B

Batt Chgr 7B-l

Batt Chgr 2B-2.

Safeguards Duplex Cond. Pmp 2-HS-P-3A

Gen Brg Li£ t Pump · ··

Cha·rging· Pp Aux .. Oil Pp 2-CH-P-IB

Charging Pp Service Wtr. Pum 2-SW~P-lOB

Semi-Vital Bus Feeder

KVA LOAD

LOCA W/LOOP.

51.8

5

5

2

25

1.1

11.1

38.8

. ,....

6.1

8.0

20

LOOP

5

5

2

25 -

1.1

11.1.

19.4

6.1

8.0

20

TOTALS · 113.9 154.5

LOCA ·

51.8

5

5

2

25

I.I

. 11.1

38.8

6.1

8.0

20

173.9

...

SECTION NO-.

EAST

1-D

2-A

3-B

3-C

3-D

- 3-E.

4-D

5-D

6-D

7-D

8-D

10-D

9-El

9-'E2

2-D

3-A2.

WEST

l-D2

2-D

3-D

6-B

8-C

9-D

10-B

·J e 480V UNIT SUBSTATION "2J~11 e .

TABULATION OF LOADS

MOTOR CONTROL CENTER 2Jl-2 DESCRIPTION OF LOAD

Cont Air Compresor 2-IA-C-2B

Blower 2-GW-C-3B

Cont Vac pp 2-CV-P-lB

Cont Spray Pp Mtr Htr 2-CS-P-lB

Safeguards Area Sump Pp 2-DA-P-lB

Stm Gen Aux Fd Pump Mot Htr 2~FW-P-3A

Recirc. Spray Pp Mtr. Rtr 2-RS-P-lB

Safeguard Area Exh. Fan 2-VS-F-40B

Hydrogen Recombiner B

Lo Hd Saf Inj Mot Htr 2-SI-P-lB

Recirc Spray Pp Mot_Htr 2-RS-P-iB

Boric Acid Tk Htr 2-CH-E-6B

4 KV Swg; Bus H Htr. FDR

Incore Instr. Drive "E"

Em.er. Makeup Pp 2-FW-P-4B

Fdr -- 15KVA XFMER Heat Tracing Cab #10

Personnel Hatch

Charging Pp Aux oil Pump 2-CH~P-lC

Boron Inj Tank Htr 2-SI-TK-2.

Cont. Rod Cool Fan 2-VS..:.F-60c·

Control Rod Drive Cooling Fan l-VS-F-60D

Safeguards Supply HV Unit 2-VS-HV-4

Boric Acid XFER Pump 2-CH-P-2D-

'IOTAL

KVA LOAD LOCA W /LOOP - . LOOP

11.2

1.4

·-8.7

-- 7.5

7.5

3

73.3

73.3

15.5 _

' 14~3- ·

215.7

11.2

1.4.

2

1.4

-2

2

8~7 ',

7.5

7.5

5

7~5

3

-73.3

73.3

· 15 .5

14.3-

239.6

LOCA

11.2

1.4

8.7

~ ..

-7.5

7.5

3

. 73.3

73.3

15.5

14.3

215.7

I

electrical load a~alysis · 480 volt emergency pov.7er system

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