SEC 

QUANG NINH THERMAL POWER JOINT STOCK COMPANY 2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL    

QUANG NINH THERMAL POWER JOINT STOCK COMPANY

2  × 300 MW – Anthracite Coal Fired Power Station                 

Turbine & Auxiliaries

Operation Manual

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Rev.: A

QUANG NINH THERMAL POWER JOINT STOCK COMPANY2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL SEC 

INDEX

1 Scope ........................................................................... 4

2 Specific quoting documents ......................................................... 4

3 Technical Specification ............................................................. 4

3.1 Turbine Technical Specification ................................................... 4

3.2 Auxiliary Equipment Technical Specification......................................... 5

4 Rated Parameter and Interlock Protection of Turbine and Its Auxiliaries. ................. 15

4.1 Turbine Interlock Protection ...................................................... 15

4.2 Interlock Protection of Auxiliary Equipment ......................................... 16

4.3 Rated Parameter ............................................................... 26

5 Turbine Start-up .................................................................. 29

5.1 Basic Regulation ............................................................... 29

5.2 Acceptance after Overhaul....................................................... 30

5.3 Test after Overhauling .......................................................... 31

5.4 Inspection and Preparation before startup ......................................... 36

5.5 Unit Cold Startup ............................................................... 39

5.6 Hot Startup .................................................................... 46

6 Monitoring and Adjusting during Operation ........................................... 51

6.1 Work Scope and Purpose of Operation Adjusting ................................... 51

6.2 Main Parameters and Limitation of Operation Control................................ 51

6.3 Monitoring and Maintenance during Turbine Operation .............................. 56

6.4 Control Mode of Turbine Operation ............................................... 57

7 Turbine Shutdown ................................................................ 58

7.1 Basic Regulation ............................................................... 58

7.2 Preparation before Turbine Shutdown ............................................. 58

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Page 1 Rev.: A

QUANG NINH THERMAL POWER JOINT STOCK COMPANY2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL SEC 

7.3 Sliding Parameter Shutdown ..................................................... 59

7.4 Normal Shutdown .............................................................. 62

7.5 Emergency Shutdown ........................................................... 62

7.6 Maintenance after Shutdown ..................................................... 63

8 Turbine Auxiliaries ................................................................ 64

8.1 Basic Regulation of Auxiliaries Operation .......................................... 64

8.2 Motor Operation ................................................................ 67

8.3 Auxiliaries Equipment and System Startup/Shutdown and Operation Maintenance ...... 69

9 Equipment Periodical Test and Shifting ............................................. 109

9.1 Equipment Periodical Test and Shifting ........................................... 110

10 DEH Operating Procedures ...................................................... 112

10.1 The DEH control system for 6 units in this projection is electro-hydraulic control system

which adopts DCS system introduced from Westhouse Process Control Co., ltd; the hydraulic

pressure part adopts high pressure fire-resistant oil; governor valves will be controlled by DEH

through electro-hydraulic converter. ................................................... 112

10.2 Functions of DEH control system include: ........................................ 112

10.3 Working Principle............................................................. 113

10.4 Control Mode ................................................................ 113

10.5 DEH Control and Operation .................................................... 114

11 Accident Disposal .............................................................. 118

11.1 Accident Disposal Principle .................................................... 118

11.2 Turbine Emergency Shutdown ................................................. 119

11.3 Turbine Operation Parameter Abnormity ......................................... 120

11.4 Turbine Water Induction ....................................................... 125

11.5 Axial displacement increasing. ................................................. 126

11.6 Turbine overspeed............................................................ 127

11.7 Abnormity unit vibration. ....................................................... 128

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Page 2 Rev.: A

QUANG NINH THERMAL POWER JOINT STOCK COMPANY2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL SEC 

11.8 Condenser Vacuum Decrease ................................................. 130

11.9 Abnormity Working of Lube Oil System .......................................... 133

11.10 EH oil system failure ......................................................... 134

11.11 Turbine Blade Broken ........................................................ 135

11.12 Load change suddenly........................................................ 136

11.13 Plant power cut ............................................................. 138

11.14 Fire Accident................................................................ 140

11.15 Auxiliaries Failure ........................................................... 140

Appendix A Recommendation Value for Speed Maintenance.................................. 155

Appendix B Parameter for Front Main Stop Valve Startup .................................... 157

Appendix C Parameter Requirement of Reheat Steam ....................................... 159

Appendix D Guide of No-load and Low Load Operation ..................................... 161

Appendix E Recommendation Value of Hot Start ........................................... 162

Appendix F Recommendation of Load Change (Fixed Pressure) ............................... 164

Appendix F Recommendation of Load Change (Sliding Pressure) .............................. 166

Appendix H Cooling Time High Pressure Cylinder.......................................... 168

Appendix I Curve of Gland Seal Temperature Difference and Stator Life ........................ 170

Appendix J Circulating Index .......................................................... 172

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Page 3 Rev.: A

QUANG NINH THERMAL POWER JOINT STOCK COMPANY2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL SEC 

1 Scope

The turbine operating manual for N300－16.7/538/538 turbine and its auxiliary is herein

prepared to specify the technical standard of the main technical character, equipment specification,

protection and interlock, operating, maintenance and fault disposal.

The operating manual is applicable for start-up, shut down, maintenance and fault disposal of

2×300MW Unit of Guang Ninh Thermal Power Joint Stock Company Phase 1.

2 Specific quoting documents

The clauses which are stated in the following documents are considered as the clauses of this

manual. The documents which marked with time, its later revised sheet or edition shall not be

applied to this manual; however, the parties who made the agreement are encouraged to study if

the updated edition can be accepted. For the document without marking, the updated edition

document shall be applied.

DL/T 609 - 1996 Guide for 300MW grade steam turbine operation

DL/T 612 - 1996 Inspection code for boiler and pressure vessel of the power industry

DAS(1994)277 Code of Power Safety Construction (Section: thermodynamics and

mechanism)

DL 558-94 Procedures of Power Construction Accident Investigation

DL558-94 – 95 Guides for Chemical Supervision of Water and Steam in Thermal Power

Plants

GB/T 12145-1999 Quality criterion of water and steam for steam power equipment

SD223-87 Guide for lay-up of thermal power equipment in fossil fuel power plant

GB7596-87 Quality criteria of turbine oil in service for power plants

Guodianfa (2000)589 the 25 Key Requirements to Avoid Serious Accident in Power

Construction

As well as the manufacturer’s equipment documents and design documents.

3 Technical Specification

3.1 Turbine Technical Specification

NAME MODEL AND SPECIFICATION

MODEL N300-16.67/538/538

TYPE SUBCRITICAL INTERMEDIATE REHEAT CONDENSING

TURBINE

RATE OUTPUT 300MW

TMCC RATE 315MW

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Page 4 Rev.: A

QUANG NINH THERMAL POWER JOINT STOCK COMPANY2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL SEC 

NAME MODEL AND SPECIFICATION

PRESSURE 16.67MPa(a)

TEMPERATURE 538℃

MASS FLOW

RATE

956.7t/h

TMCC REGIME

MAIN STEAM

CONDITION

BAKE

PRESSURE

8.20kPa(a)

RATE SPEED 3000r／min

ROTATION DIRECTION CLOCKWISE SEE FROM TURBINE TO GENERATOR

3.2 Auxiliary Equipment Technical Specification

NUMBER

NUMBER

NAME MODEL AND

SPECIFICATION

UNIT1# 2#

MANUFACTURE

REMARK

1 MAIN LUBE OIL

TANK

V=39m3

VOLUME V=39m3

SET 1 1 SUPPLIED

WITH

STC

SMOKE

EXTRACTOR

EXHAUST

FAN

Type：2FDHB-14-1

MODEL NUMBER:

2FDHB-14-1

EXHAUST DEMAND

14 m3/h

SET 2 2 SUPPLIED

WITH

STC

2 LUBE OIL

PURIFIED

EQUIPMENT

YN-MAB206

MODEL NUMBER:

YN-MAB206

SET 1 1 YANGZHONG

HUANENG

ELECTRIC

POWER

EQUIPMENT

CO.,LTD

JACKING OIL

PUMP SET 2 2 SUPPLIED

WITH

STC

3

MOTOR 15KW 400V

145r/min

SET 2 2 SUPPLIED

WITH

STC

4 LUBE OIL

COOLER

MODEL NUMBER:

NT150L B-10

COOLING WARTER

SET 2 2 SUPPLIED

WITH

STC

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Page 5 Rev.: A

QUANG NINH THERMAL POWER JOINT STOCK COMPANY2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL SEC 

NUMBER

NUMBER

NAME MODEL AND

SPECIFICATION

UNIT1# 2#

MANUFACTURE

REMARK

DEMAND: 220t/h

HEAT EXCHANGER

AREA 198.44m2

5 DEH CONTROL

OIL EQUIPMENT

OIL FILLING

VOLUME 1000L

SET 1 1 SUPPLIED

WITH

STC

6 TURBINE

TURNING DEVICE SET 1 1 SUPPLIED

WITH

STC

GLAND STEAM

CONDENSER FAN

CAPACITY: 1080

m3/h

SET 2 2 SUPPLIED

WITH

STC

7

MOTOR 7.5KW 415V

MODEL NUMBER:

YB132S2-2

SUPPLIED

WITH

STC

8 GLAND STEAM

CONDENSER

MODEL NUMBER:

QL-110-2

SET 1 1 SUPPLIED

WITH

STC

9 SEAL OIL SUPPLY

UNIT SET 1 1 SUPPLIED

WITH

SGC

10 AIR SIDE DRAIN

REGULATOR SET 1 1 SUPPLIED

WITH

SGC

VAPOUR

EXHAUST DEVICE

EXHAUST CAPACITY 0.19～ 0.27 m3/s

SET 1 1 SUPPLIED

WITH

SGC

11

MOTOR 3.0KW 400V 50Hz

MODEL NUMBER:

YB100S-2

SET 1 1 SUPPLIED

WITH

SGC

12 STATOR COOLER

WATER SUPPLY

DEVICE

COOLER WATER

FLOW: 55m3/h

SET 1 1 SUPPLIED

WITH

SGC

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Page 6 Rev.: A

QUANG NINH THERMAL POWER JOINT STOCK COMPANY2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL SEC 

NUMBER

NUMBER

NAME MODEL AND

SPECIFICATION

UNIT1# 2#

MANUFACTURE

REMARK

13 HYDRAULIC HP

BY PASS

EQUIPMENT

INLET STEAM

PARAMETER:

17.50MPa 548℃ 300t/h

OUT STEAM

PARAMETER:

4.4MPa 350℃ 334.2t/h

DESUPERHEAT

WATER

PARAMETER:

28MPa 185℃ 105.6t/h

SET 1 1 SHANGHAI CCI

POWER

CONTROL

EQUIPMENT

CO.,LTD

14 HYDRAULIC LP BY

PASS EQUIPMENT

INLET STEAM

PARAMETER:

4.4MPa 548℃ 334.2t/h

OUT STEAM

PARAMETER:

0.8MPa 175℃ 420.9t/h

DESUPERHEAT

WATER

PARAMETER:

3.20MPa 38℃ 233.6t/h

SET 2 2 SHANGHAI CCI

POWER

CONTROL

EQUIPMENT

CO.,LTD

15 HP HYDRAULIC

STATION

SUPPORTED WITH

HP BY PASS

EQUIPMENT

SET 1 1 SUPPLIED

WITH

EQUIPMENT

16 LP HYDRAULIC

STATION

SUPPORTED WITH

LP BY PASS

EQUIPMENT

SET 1 1 SUPPLIED

WITH

EQUIPMENT

17 CONDENSER MODEL

NUMBER:N-18000

SURFACE

CONDENSER

SET 1 1 SHANGHAI

POWER

EQUIPMENT

CO.,LTD

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Page 7 Rev.: A

QUANG NINH THERMAL POWER JOINT STOCK COMPANY2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL SEC 

NUMBER

NUMBER

NAME MODEL AND

SPECIFICATION

UNIT1# 2#

MANUFACTURE

REMARK

CONDENSER

VALIDITY HEAT

EXCHANGE AREA:

18000 m2 CIRCULATING WATER FLOW ： 42800t/h

18 TURBINE FLASH

TANK I SET 1 1 SUPPLIED

WITH

CONDENSER

19 TURBINE FLASH

TANK II SET 1 1 SUPPLIED

WITH

CONDENSER

20 NO.8 HP HEATER MODEL NUMBER:

JG-1025-3-3

HORIZONTAL

FORM

HEAT EXCHANGE

AREA: 1025m2

SET 1 1 SHANGHAI

POWER

EQUIPMENT

CO.,LTD

21 NO.7 HP HEATER MODEL NUMBER:

JG-1110-3-2

HORIZONTAL

FORM

HEAT EXCHANGE

AREA: 1110m2

SET 1 1 SHANGHAI

POWER

EQUIPMENT

CO.,LTD

22 NO.6 HP HEATER MODEL NUMBER:

JG-885-3-1

HORIZONTAL

FORM

HEAT EXCHANGE

AREA: 885m2

SET 1 1 SHANGHAI

POWER

EQUIPMENT

CO.,LTD

23 DEAERATOR AND

STORAGE TANK

MODEL NUMBER:

GC-1180/GS-120

HORIZONTAL

SET 1 1 SHANGHAI

POWER

EQUIPMENT

CO.,LTD

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Page 8 Rev.: A

QUANG NINH THERMAL POWER JOINT STOCK COMPANY2×300 MW 

TURBINE & AUXILIARIES OPERATION MANUAL SEC 

NUMBER

NUMBER

NAME MODEL AND

SPECIFICATION

UNIT1# 2#

MANUFACTURE

REMARK

DEAERATOR

RATE POWER:

1180t/h

RESERVOIR

USEFUL VOLUME:

120 m3

24 NO.4 LP HEATER MODEL NUMBER:

JD-580-9-4

HORIZONTAL

HEAT EXCHANGE

AREA: 580m2

SET 1 1 SHANGHAI

POWER

EQUIPMENT

CO.,LTD

25 NO.3 LP HEATER MODEL NUMBER:

JD-530-4-2

HORIZONTAL

FORM

HEAT EXCHANGE

AREA: 430m2

SET 1 1 SHANGHAI

POWER

EQUIPMENT

CO.,LTD

26 NO.1 LP HEATER NO.2:MODEL

NUMBER:

JD-840-6-1

HORIZONTAL

FORM

HEAT EXCHANGE

AREA: 840m2

NO.2:MODEL

NUMBER:

JD-740-6-2

HORIZONTAL

HEAT EXCHANGE

AREA: 740m2

SET 1 1 SHANGHAI

POWER

EQUIPMENT

CO.,LTD

27 FEED WATER

PUMP

MODEL NUMBER:

300DCS4M

441.35t/h

19.65MPa(a)

SET 3 3 EBARA

BOSHAN

PUMPS

CO.,LTD

28 BOOSTER PUMP MODEL NUMBER:

300×200KS 63

SET 3 3 EBARA

BOSHAN

Date 2008-09-15 No. : QN1-SEC-G-04-TP-002 Page 9 Rev.: A