BTG大联锁专项措施专业资料.doc

印尼BATAM TJK 2×65MW燃煤电站工程
BTG大联锁调试办法

PROCEDURE OF BTG INTERLOCK FOR INDONESIA BATAM TJK 2×65MW COAL-FIRED POWER PLANT

Dec.
12月

ITEM NO.：

Complied by:
编 写：

Revised by:
审 核：

Approved by:
批 准：
目 录
Contents
1. 安全注意事项
Safety precautions
2. 调试目
Purpose
3. 仪器设备
Equipment
4. 编制根据
Reference
5．调试范畴
Scope of commissioning
6. 调试前必要具备条件
Conditions of commissioning
7. 调试环节
Process of commissioning
8. 调试合格原则
Acceptance of commissioning result
9. 附 录
Appendices

1. 安全注意事项
Safety precautions
1.1所有实验人员应严格遵守本现场各种安全工作规定，保证明验安全可靠进行
All personnel participated in commissioning should strictly follow the commissioning procedure and site safety rules in order to ensure that tasks are performed in a safe and orderly way.
1.2实验过程应统一组织统一指挥；
Testing and commissioning shall be well organized and conducted under unified command.
1.3在实验过程中如有危及人身及设备安全状况，应及时停止实验；
In case of any abnormal conditions leading to personal injury and equipment damage，suspend testing immediately and take corrective measures.
1.4实验过程中合发电机出口断路器和磁场断路器时，做好安全隔离办法，防止发电机误上电。
Be sure to isolate the generator system electrically before closing generator CB and magnetic field CB to prevent inadvertent energizing the generator.
2． 调试目
Commissioning purpose
为了指引及规范系统及设备调试工作，检查系统性能，发现并消除也许存在缺陷，保证系统及设备可以安全正常投入运营。
Instruct and regulate the system and equipments commissioning. Verify system performance，Discover and eliminate defects might exist. Ensure the system and equipments can be put into operation safely and normally.
3．仪器设备
Equipment
如下所有仪器已通过校验.
All the instruments below have already calibrated.
3.1 万用表：FLUKE 17B
Multimeter：FLUKE 17B
3.2 信号发生器：FLUKE 744
Signal Source：FLUKE 744
4. 编制根据

Reference
4.1设计图纸
Design drawing
4.2制造厂家产品阐明书
Manufacture product document
5. 调试范畴
机组BTG大联锁，即锅炉、汽轮机、发电机之间联锁关系。
Boiler-Turbine-Generator (BTG) interlock is the logic relationship between the operations on boiler，turbine and generator.
5.1锅炉主保护MFT动作信号送到ETS联跳汽轮机，汽轮机跳闸后，通过逆功率保护跳闸发电机。
The signal MFT (master fuel trip) initiates the ETS to trip the turbine，after the turbine tripped，the generator will be tripped off by reverse-power protection.
5.2发电机主保护动作联跳汽轮机。汽轮机跳闸后，锅炉负荷（蒸汽流量）不不大于30%，触发锅炉MFT动作。
The operation of generator main protections will intertrip the turbine，which will，in turn，initiate MFT if the boiler load（main steam flow） is greater than 30%.
6. 调试前必要具备条件
Conditions of commissioning
6.1机组分系统试运工作完毕，分系统试运中浮现问题已所有解决完毕；
Testing and trial run of each subsystem has been finished. All defects and abnormal conditions occurred in the trial run have been rectified.
6.2锅炉主保护（MFT）各项实验已所有完毕，逻辑关系对的；
All testing items of MFT have finished，showing the logic conditions correct.
6.3锅炉各重要辅机联锁保护实验完毕，逻辑关系对的；
Testing of the interlocks and protections of boiler auxiliaries has finished，indicating logic conditions correct.
6.4汽轮机主保护各项实验所有完毕，逻辑关系对的；
Testing of all main protections of turbine has finished，showing the operation logic correct.
6.5汽轮机各重要辅机联锁保护实验完毕，逻辑关系对的；
Testing of interlocks and protections of turbine main auxiliaries has finished，showing the logic correct.
6.6发-变组保护各项实验所有完毕，逻辑关系对的；
Testing of all protections of generator-transformer unit has been finished，showing the operation logic correct.
6.7发-变组系统断路器传动实验完毕,符合设计规定。
The circuit breakers (CBs) of generator-transformer unit have passed transmission test，fulfilling design requirements.
6.8现场道路畅通，通讯设施良好，照明充分。
Roads and paths in site are clear，convenient communications and sufficient lighting are available.
6.9整套启动前条件基本满足。
The entire plant and support system have been made in readiness for integral unit start-up.
7. 调试环节
Process of commissioning
74.1实验前机组状态
Pre-testing condition of the unit
7.1.1锅炉状态：
Boiler condition
l 启动送、引风机。（开关在实验位）
Start ID fan and FD fan (CB in “Test” position).
l 锅炉吹扫完毕（信号模仿），MFT复位。
Simulate completion of furnace purging. Reset MFT.
l 任意模仿投入一层油枪。
Simulate that oil guns at the first level are put into operation.
l 在实验位合一次风机开关，模仿投入下层制粉系统。
Close PA fan CB in “TEST” position and simulate to put mill group A into operation.
l 打开减温水电动门（过热器一减、二减电动门及总门，再热器事故喷水电动门、再热器微调减温水电动门及总门）。
Open motorized attemperating water valves，including 1st，2nd stage attemperators and main isolating valves of superheater，emergency spray water valve，2nd stage attemperating valve of reheater and main isolate valves of reheater.
7.1.2汽轮机状态：
Turbine condition
l DEH复位。
Reset DEH.
l 汽轮机挂闸，主汽门启动。
Latch turbine and open main steam valves.
l 将汽轮机疏水阀全关。
Close all turbine drain valves.
l 将汽轮机抽汽逆止门及抽汽电动门全开。
Open turbine extraction non-return valve and motorized valve fully.
7.1.3电气状态：Generator condition
l 手动合发电机出口开关
Close generator circuit breaker (CB) manually．
l 手动合磁场断路器
Close field breaker manually.
7.2联锁实验：
Testing of interlock circuits:
7.2.1锅炉跳闸，联锁汽轮机跳闸，汽轮机跳闸后通过逆功率保护联跳发电机。
Boiler tripping will intertrip the turbine，resulting in the generator trip by reverse-power protection.
7.2.1.1在发变组保护柜模仿逆功率值不不大于设定值。
At generator-transformer protection cabinet，simulate the value of reverse power greater than the setting value.
7.2.1.2选取一项MFT保护条件，触发MFT动作。
Initiate the MFT by simulating one of MFT protection conditions.
7.2.1.3MFT动作，锅炉跳闸，联跳供油快关阀、回油快关阀、油角阀及吹扫阀、油枪及点火枪、一次风机、A给煤机、A磨煤机、下层制粉系统，联关减温水电动门（过热器一减、二减电动门及总门，再热器事故喷水电动门、再热器微调减温水电动门及总门）。
MFT action will initiate the following protection operations:
1) Oil feed fast valve intertrip
2) Return oil fast valve intertrip
3) Oil corner valves and purging steam valves intertrip
4) oil guns and ignition guns intertrip
5) PA fans intertrip
6) Coal feeder A and miller A intertrip
7) Attemperating water valves close (1st，2nd and stage attemperators and main isolating valves of superheater，emergency spray water valve，2nd stage attemperating valve of reheater and main isolate valves of reheater).
7.2.1.4联锁汽轮机跳闸，主汽门关闭，联开汽轮机疏水阀，联关汽轮机抽汽逆止门及抽汽电动门。
The interlock will trip the turbine by initiating the following operations:
1) The main steam stop valve will be closed.
2) Turbine drain valves will be open.
3) Turbine extraction non-return valve and motorized valve will be closed.
7.2.1.5汽机跳闸后，汽机跳闸信号送至发变组保护柜，发电机跳闸，断路器断开。
On receiving the turbine trip signal，the reversepower protection (in the generator-transformer protection cabinet) will trip the generator CB off.
7.2.1.6实验完毕后系统恢复：
Restore the system on the completion of testing.
锅炉复位：
Restoration of boiler condition
8. 锅炉吹扫完毕（信号模仿）。
The furnace purging has been completed（simulate the signal）.
8. MFT复位。
Reset MFT.
汽轮机复位：
Restoration of turbine condition
8. DEH复位。
Reset DEH
8. 汽轮机挂闸，主汽门启动。
Latch turbine and open main steam valves again.
7.2.1.7实验完毕。
Test is finished.
7.2.2发电机跳闸，联锁汽轮机跳闸，汽轮机跳闸后负荷不不大于30%时，联锁锅炉MFT跳闸，负荷信号普通模仿300t/h(蒸汽流量)。
Generator trip will trigger the turbine trip，which will directly trigger the MFT to shut down the boiler in case of loading greater than 30%，In the simulation，the load signal is generally set at 300t/h(main steam flow).
7.2.2.1模仿一项发电机主保护动作，触发发电机跳闸，发电机断路器断开。
Trip generator and its CB by simulating one of faults the generator is protected against.
7.2.2.2联锁汽轮机跳闸，主汽门关闭，联开汽轮机疏水阀，联关汽轮机抽汽逆止门及抽汽电动门。
The turbine will be intertripped and the main steam valve closed，then，through interlock，all turbine drain valves opened and extraction steam non-return and motorized valves closed.
7.2.2.3汽轮机跳闸后，MFT动作，锅炉跳闸，联跳油枪、一次风机、A磨煤机、A给煤机、下层制粉系统、联关减温水电动门，再热器事故喷水电动门、再热器微调减温水电动门及总门）。
After turbine tripped，the MFT will operate to shut down the boiler，resulting in interlock trips of oil guns，PA fans，miller A and coal feeder A，and in closing of motorized attemperating water valves.
7.2.2.4各专业恢复各系统正常，解除所有模仿、强制信号。
Restore each system to normal condition and remove all simulation and forced signals.
7.2.2.5实验结束。
All the tests are finished.
8. 调试合格原则
Acceptance of commissioning result
8.1 联锁保护逻辑完善。
The interlock and protection logic function is completed.
8.2 BTG大联锁I/O测点显示对的。
BTG interlock I/O measuring points display right
8.3 BTG大联锁静态、动态联锁动作对的、可靠。
BTG interlock captive test and dynamic test safely and smoothly.
9. 附 录
Appendices
如下实验项目和表格随着现场调试工作进行会有必要修改和完善。
All test items and table(list) in appendices below will be changed and modifyed according to the site commissioning and temporal situation.

附录Appendices
附表Appendix 1 实验登记表 Testing Record Sheet
序号
SL.NO
内容
Item
实验动作关系
Operation logic
签名
Signature
备注
Remarks
调试部commissioning
运营部operation
1
锅炉主保护MFT动作
Boiler shutdown by MFT

1.1
联跳汽轮机
Intertrip of turbine & generator

1.2
逆功率动作联跳发电机
Generator trip by reverse-power protection

2
发电机主保护动作
Generator trip by its main protections

2.1
联跳汽轮机
Interlock trip of turbine

2.2
在锅炉负荷不不大于30%时直接跳锅炉；
At boiler load greater than 30%，boiler MFT shall be initiated directly.