CPT-0026-Commissioning Procedure of Electrical complete-set Startup.pdf

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2014-3-28

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2013-11-8

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SOUTH LUZON THERMAL ENERGY CORP.

EPC CONTRACTOR EP CONTRACTOR COMMISSION ING ENGINEER PROJECT ISSUE TYPE DOCUMENT NUMBER TITLE

1×135MW CFB Power Plant Project Phase 1 □ FOR INFORMATION ■ FOR APPROVAL SLTEC1-COM-CPT-0026 Commissioning Procedure of Electrical complete set startup

This document is the property of Shandong Electric Power Engineering Consulting Institute Corp., Ltd. and China National Technical IMP. & EXP. CORP. No part of this document may be reproduced by any means, nor transmitted without the written permission of the corporation.

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

TABLE OF CONTENTS 1.

SYSTEM DESCRIPTION AND EQUIPMENT TECHNICAL REGULATIONS ..... 1

2.

WORK DIVISION ..................................................................................................................... 1

3.

COMMISSIONING CONDITIONS ..................................................................................... 2

4.

INSPECTION AND TEST PROGRAM ............................................................................... 3

5.

COMMISSIONING METHODS AND PROCEDURES .................................................. 4

6.

SUB SYSTEM COMMISSIONING PROCEDURE LIST .............................................. 9

7.

SAFETY PRECAUTIONS......................................................................................................... 9

8.

HANDING OVER CERTIFICATE ...................................................................................... 11

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

1. System Description and Equipment Technical Regulations 1.1 System Description The generator is connected to the Generator Step-up (main) transformer and Unit Auxiliary Transformer (UAT), connected to the 13.8 kV side of the GSU, via Isolated Phase Bus-duct. The high-voltage side of GSU and Station Service (start-up) Transformer (SST) shall be connected to the bays of 230kV switchyard in the substation via over-head lines of type ACSR. Generator circuit breaker will be installed between the generator and the GSU. During the plant starts, the GCB is open and the plant electrical auxiliaries are supplied power from the GSU and UAT, fed back from the 230kV system. When the generator is at rated speed, it shall be synchronized to the 230kV system via the GCB, and the plant electrical system will be supplied from the generator. Alternatively, the SST can be used in lieu of the UAT during start-up. The nominal voltage of Medium-Voltage system is 4.16kV. The MV auxiliary power system shall be normally supplied from the generator outlet terminals via UAT, and there will be one alternative source supplied from the 230kV substation via SST. 1.2 Equipment Technical Regulations 1.2.1 The main technical parameters of the generator Model

QFKN-135-2-60

Cos φ

0.85

Rated Power

135MW

Frequency

60Hz

Rated voltage

13.8kV

Rated capacity

158.8 MVA

Rated current

6645A

Exciting type

Static excitation

1.2.2 The main technical parameters of GT Model Rated capacity Rated voltage Rated current

SFPZ-170000/230 170MVA 230±10X1.25%/ 13.8kV 426.7A/7112.5A

Cooling Model Winding connection mode Impedance Voltage regulation mode

ODAF YN，d11 14% On-load voltage regulation

1.2.3 The main technical parameters of UAT Model Rated capacity

SF-23000/13.8 23MVA

Rated voltage

13.8±2X2.5%/4.36kV

Rated current

962.3A/3045.7A

Cooling Model Winding mode

connection

Impedance Voltage regulation mode

2. Work Division

Page 1 of 11

ONAN/ONAF D，yn1 11% No load voltage regulation

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

See the document: commissioning outline SLTECI-COM-CPT-0001

3. Commissioning Conditions NO

Content

Check

1

Generator transformer unit electric primary & secondary equipment commissioning has been completed, design and startup requirements met and accepted.

2

Name and serial number of all related equipments must be complete. Energized equipments must be clearly marked and surrounded by barricade. Gate of switchyard and related switchgears must be locked.

3

GT, UAT must be set on level as per dispatching unit ’ s requisition, and DC resistance of this level must be surveyed and qualified. Gas relay must be calibrated and exhausted.

4

Boiler-turbine-generator ( BTG) interlock protection must be tested and confirmed.

5

The emergency diesel generator(EDG) must be available and the fuel tank must be filled with enough diesel. During the period of unit trial operation, EDG must be in hot-standby condition.

6

Measure

and

confirm

the

insulation

resistance

and

absorptance

of

generator-transformer unit primary system must be qualified.

□ □ □ □ □ □

7

Communication devices of testing area must be convenient for operation.

□

8

Fire-fighting facilities must be sufficient and complete for operation.

□

9

The unit auxiliary power is provided by SST.

□

10

Confirmation that all relevant safety documentations (PTW) are cancelled.

□

Remove the flexible braid between IPB(10BAA02) and excitation transformer(10MKC01), provide a temporary excitation transformer power for short circuit & open-circuit test from 4.16kV spare circuit breaker(10BBA14) at section A through a temporary cable.

□

11

Page 2 of 11

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

4. Inspection and Test Program INSPECTION AND TEST PROGRAM:

SYSTEM:

Test No.

INSPECTION AND TEST DESCRIPTION

QTY.

1

Measure the AC impedance and power loss of rotor

CPT-0026

2

Short circuit test

CPT-0026

3

Generator no-load characteristic test

CPT-0026

4

Exciting regulator test

CPT-0026

7

Synchronization test

CPT-0026

8

On-load commissioning

CPT-0026

9

Full-load commissioning

CPT-0026

Page 3 of 11

ELECTRIC

SHEET:

TEST FORMS / DOCUMENTS

DATE

1/1 NOTE

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

5. Commissioning Methods and Procedures 5.1 Initial conditions NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Location/Device J0AEA01GS100 GT Circuit Breaker J0AEA01GS200 GT Earth Switch J0AEA01GS300 GT Disconnector 10BAC01Q0 Generator Circuit Breaker 10BAC01Q9 Generator Disconnetor 10BAC01Q81 Generator Earthing Switch on Generator Side 10BAC01Q82 Generator Earthing Switch on Transformer Side 10BBD01 Connection Circuit Breaker of 4.16kV NPB 10BBA01 Power Incoming Breaker of 4.16kV 10BAA01 Isolated Phase Bus-duct Main Circuit 10BAA02 Isolated Phase Bus-duct Excitation Branch Circuit 10BBA14 Spare Circuit Breaker 10BAT01GH001 GT Air-cooled Control Panel 10BBT01GH001 UAT Air-cooled Control Panel 10CJJ01 DEH Cabinet J0ARB01GH001 A protection panel for 230kV Bus J0ARB01GH002 B protection panel for 230kV Bus

Activity OPEN, locked and cautioned OPEN, locked and cautioned OPEN, open motor supply for operation (F41), locked and cautioned OPEN, locked and cautioned OPEN, locked and cautioned OPEN, locked and cautioned OPEN, locked and cautioned OPEN IN TEST POS, locked and cautioned OPEN IN TEST POS, locked and cautioned IPB was shorted by the short circuit test device Remove the flexible braid between IPB and excitation transformer CLOSED IN SERVICE POS, locked and cautioned PUT GT air-coolers into service manually PUT UAT air-coolers into service manually Remove the wires connect to the terminal B04:35, B04:36, B06:35, B06:36, B08:35, B08:36 Jump the terminals 1I1D:1, 1I1D:2, 1I1D:3, 1I1D:4 Remove the terminal connector Jump the terminals 1I1D:1, 1I1D:2, 1I1D:3, 1I1D:4 Remove the terminal connector

check

□ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □

5.2 Measure the AC impedance and power loss of generator rotor Measure the AC impedance and power loss of rotor winding during speed-increase period and overspeed test (Input exciting voltage should not exceed rated exciting voltage). 5.3 Short circuit test

Page 4 of 11

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

Items

Description

Check

1

Put relative protections into service, protection list according to annex A.

□

2

Start excitation at local. Operate exciting system to increase

NO

excitation manually. Increase exciting current slowly until primary current of generator reach 1000A and secondary

□

current reach 0.5A. 3

Inspect generator CT circuit of protection and measurement, confirm that no problems have been detected.

Generator shor

4

Increase excitation gradually to perform ascending short circuit characteristic test of generator, the maximum primary current value should be generator rated current 6645A,

circuit test

secondary current would be 3.32A. Record generator stator current, exciting current and exciting voltage simultaneously. 5

□

Decrease excitation gradually to naught to perform descending short circuit characteristic test of generator. Record generator stator current, exciting current and exciting

□

□

voltage simultaneously. 6 1 2 3 4 5 Generator Transformer unit shor circuit test

After test, stop excitation, take security measures, then remove the short circuit test device on IPB main circuit10BAA01.

□

Put relative protections into service, protection list according to annex A.

□

J0AEA01GS200 GT Earth Switch J0AEA01GS100 GT Circuit Breaker 10BAC01Q9 Generator Disconnetor 10BAC01Q0 Generator Circuit Breaker

□ □ □ □

CLOSE CLOSE CLOSE CLOSE

6

Start excitation at local. Increase exciting current slowly until primary current of generator reach 1000A and secondary current reach 0.5A.

□

7

Inspect generator & GT CT circuit of protection and measurement, confirm that no problems have been detected.

□

8

Measure secondary current value and vector of CT, and verify the vector relation of generator & GT differential protection current.

□

After test, decrease exciting current to 0A then stop excitation.

□

9

5.4 Generator no-load characteristic test

Page 5 of 11

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

Description

NO 1 2 3 4 5 6

Check

□ □ □ □ □

Put relative protections into service, protection list according to annex A. 10BAC01Q0 Generator Circuit Breaker 10BAC01Q9 Generator Disconnetor J0AEA01GS100 GT Circuit Breaker J0AEA01GS200 GT Earth Switch

OPEN OPEN OPEN OPEN

Start excitation at local. Manipulate exciting system to increase excitation manually. Increase exciting current slowly until secondary voltage of generator reach 55V

7

Measure PT secondary voltage value, phase sequence and zero-sequence voltage separately

at

related

cabinets,

including

generator

PT

local

cabinets,

generator-transformer unit protection cabinets, transducer cabinets, exciting regulator cabinets and so on. 8

Raise generator voltage to rated value by increasing excitation. Measure PT secondary voltage value, phase sequence and zero-sequence voltage separately at generator PT local cabinets, generator-transformer unit protection cabinets, transducer cabinets, exciting regulator cabinets and so on.

9

□ □

□

Increase excitation gradually to perform ascending off-load characteristic test of generator. Maximum primary voltage value would be 14.5kV (1.05 times of generator rated voltage). Record generator exciting current and stator voltage at the same time.

□

10

Decrease excitation gradually to naught to perform descending off-load characteristic test of generator. Record generator exciting current and stator voltage at the same time.

□

11

Measure de-exciting period constant on rated voltage when stator circuit opened.

12

Measure generator remnant voltage and phase sequence.

13 14

10BBA14 Spare Circuit Breaker 10BAA02 Isolated Phase Bus-duct Branch Circuit

OPEN Excitation

Remove the temporary cable, recover the flexible braid between IPB and excitation transformer

Page 6 of 11

□ □ □ □

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

5.5 Exciting regulator test Description

NO

Check

1

Put relative protections into service, protection list according to annex A.

2

Voltage regulating scope test in manual mode

3

Voltage regulating scope test in automatic mode

4

Generator step-up test in off-load situation

5

Generator de-exciting test in off-load situation

6

Switch-over test of manual /automatic mode

7

Mutual-switchover test of two sets of self-regulation channels

8

Field flashing and inverting de-exciting test

□ □ □ □ □ □ □ □

5.6 Synchronization test Items

Description

Check

Put relative protections into service, protection list according to

□

NO 1

annex A. 2 3 3

10BAC01Q9 Generator Disconnetor 10BAC01Q0 Generator Circuit Breaker

CLOSE CLOSE

Start excitation, increase excitation to raise the generator voltage to 13.8kV in automation mode.

Inspection of

4

Measure secondary voltage and phase sequence of generator

□

5

Compare the secondary voltage of generator and GT LV-side at synchronizing device cabinet.

□

6

Check system parameters displayed on auto-synchronizing device screen must be correct, and compare the parameters with surveying value.

□

7

After the test, decrease excitation to reduce generator voltage to naught, then stop excitation.

□

1

Put relative protections into service, protection list according to annex A.

□

J0AEA01GS300 GT Disconnector J0AEA01GS100 GT Circuit Breaker

□ □

False test

□

and GT LV-side at the generator-transformer unit protection cabinet and so on. Measure zero-sequence voltage at the same time.

synchronizing circuit

synchronization

□ □

2 3

Page 7 of 11

CLOSE CLOSE

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

4

10BAC01Q9 Generator Disconnetor

OPEN, open control supply for operation

□

5

Start excitation, increase excitation to raise the generator

□

voltage to 13.8kV in automation mode. 6

Enable synchronization Voltage.

7

Enable synchronizing device work position.

8

Synchronizing device request adjust speed to DEH.

9

When DEH permit synchronizing device start adjust speed, start synchronizing device.

10

□ □ □ □

Synchronizing device should adjust generator rotate speed and excitation, when all of the synchronizing qualifications fulfilled, synchronizing device close the GCB on the synchronization spot

□

automatically. 11

10BAC01Q0 Generator Circuit Breaker

OPEN

□

12

After test, decrease excitation to reduce generator voltage to naught, then stop excitation.

□

1

Put relative protections into service, protection list according to

□

annex A. Apply for quit 230kV busbar differential protection. 2

3

4

Synchronization 5

10CJJ01 DEH Cabinet J0ARB01GH001 A protection panel for 230kV Bus J0ARB01GH002 B protection panel for 230kV Bus 10BAC01Q9 Generator Disconnetor

Recover the wires connect to the terminal B04:35, B04:36, B06:35, B06:36, B08:35, B08:36 Remove the Jumper at the terminals 1I1D:1, 1I1D:2, 1I1D:3, 1I1D:4 Recover the terminal connector Jump the terminals 1I1D:1, 1I1D:2, 1I1D:3, 1I1D:4 Remove the terminal connector CLOSE

□ □ □ □

6

Start excitation, increase excitation to raise the generator voltage to 13.8kV in automation mode.

7

Enable synchronization Voltage.

8

Enable synchronizing device work position.

9

Synchronizing device request adjust speed to DEH.

□ □ □

10

When DEH permit synchronizing device start adjust speed, start synchronizing device.

□

Page 8 of 11

□

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

11

Synchronizing device should adjust generator rotate speed and excitation, when all of the synchronizing qualifications fulfilled, synchronizing device close the GCB on the synchronization spot

□

automatically, the generator is paralleled with the grid. 12

Measure current phase related with 230kV bus differential protection, then put differential protection into service.

□

5.7 On-load commissioning Description

NO 1

Check the operation of relay protection devices and surveying gauges.

2

Measures unbalance current of differential protection.

3

Measure rotor axis voltage under different load.

4

Test of auto-exciting regulator.

5

Switchover test of operating (auto) and standby( manual ) exciting equipments.

6

Check voltage-regulating character of AVR.

Check

□ □ □ □ □ □

5.8 Full- load commissioning Description

NO 1

Solve related technical problems during the trial operation period

2

Complete trial operation record and collect operation data periodically

3

Eliminate defects and anything abnormal related with commissioning

Check

□ □ □

6. Sub System commissioning Procedure List NO.

Item No.

1

SLTEC1-COM-CPT-0025

2

SLTEC1-COM-CPT-0064

3

SLTEC1-COM-CPT-0065

4

SLTEC1-COM-CPT-0029

5

SLTEC1-COM-CPT-0030

Document name Commissioning Procedure of Diesel Generator and Emergency Power Supply System for 1X135MW CFB Power Plant Project Phase 1 Commissioning Procedure of 230kV GIS System Energized for 1X135MW CFB Power Plant Project Phase 1 Commissioning Procedure of 110V DC System for 1X135MW CFB Power Plant Project Phase 1 Commissioning Procedure of Auxiliary Power System Energized for 1X135MW CFB Power Plant Project Phase 1 Commissioning Procedure of UPS System for 1X135MW CFB Power Plant Project Phase 1

7. Safety Precautions 7.1 Human Safety

Page 9 of 11

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

7.1.1 When in site, uniform and safety helmets are a must. When it is of live working, well insulated shoes is needed. 7.1.2 When site is of poor illumination, unsmooth roads, and insufficient protective devices, commissioning should be stopped to avoid accident. 7.1.3 If direct contact to circuit or charged equipment, confirmation that power has been broken down with voltage tester is a must. 7.1.4 When it is in power disconnection operation, there should be warning board at power switch to avoid malfunction. Power can only be sent when approved by commissioning personnel after operation, and there should be personnel present before power sending. Interphone should be used for confirmation. 7.1.5 No cross operation is allowed. 7.2 Equipment Safety Power voltage and input voltage should meet requirements; 7.3 Instrument safety Pay attention to meter connection and wrong connection should be avoided.

Page 10 of 11

菲律宾普丁巴图 1×135MW 燃煤电站项目 1×135MW CFB Power Plant Project Phase 1

8. Handing Over Certificate Code No.:

Description:

COM-HO-E01

commissioning for puting bato project phase 1-------electric

Commissioning Department Complete set of commissioning is completed and ready for handing over Commissioning

Manager

Date

Signature

QA/QC Department Plant is inspected and found to be complying with Project Quality Plan. QA/QC Manager

Date

Signature

Employer/ Engineer Handing over from Commissioning to trial operation is approved. E/E Representative

Date

Signature

Owner/ Engineer Handing over from Commissioning to trial operation is approved. O/E Representative

Date

Remarks:

Page 11 of 11

Signature