燃煤电站工程 厂用电切换系统调试方案.doc
BALCO EXPANSION PROJECT 4×300 MW THERMAL POWER PLANTProcedure of Auxiliary Power Change-over Test印度BALCO扩建4×300MW 燃煤电站工程厂用电切换系统调试方案Dec. 20092010年12月Compiled by: 编写：_ Revised by：审核： Approved by： 批准：目 录CONTENTS1. 试验目的 Purpose2. 试验范围 Scope of test 3. 系统及设备参数Specification of major equipment 4. 试验前应该具备条件 Prerequisites of test 5. 试验步骤 Test procedure 6. 注意事项 Safety precautions1. 目的Purpose1.1检查电气保护、联锁、信号和厂用电源切换装置设备等，确认其动作可靠。检查设备的运行情况和系统的性能，发现并消除可能存在的缺陷。保证系统和设备能够安全正常地投入运行。Check and confirm the protection, interlock, signal, change-over devices and so on. Confirm the action must be reliable. Check equipment operation and system performance. Discover and then eliminate the defect might exist. Ensure the system and equipments can be put into operation safely.2. 试验范围Test scope2.1 6KV单元段1SA(2SA)带负荷切换On-load change-over test of 6KV unit board 1SA（2SA）2.2 6KV单元段1SB(2SB)带负荷切换On-load change-over test of 6KV unit board 1SB（2SB）2.3 6KV 公用段1A(2A)带负荷切换On-load change-over test of 6KV common service board 1A(2A)2.4 6KV 公用段1B(2B)带负荷切换On-load change-over test of 6KV common service board 1B(2B)3.试验前应具备的条件：Prerequisites before test3.1电气、热控应具备的条件：Electric and I/C prerequisites3.1.16KV工作、公用段工作进线、备用进线开关传动试验完毕，结果正确。Transmission test of working 6.6KV and common 6.6KV switches must be completed and correct.3.1.2厂用电源快切装置静态调试完毕，各整定值已按定值通知单执行，且具备投运条件。Static test of auxiliary power change-over device must be complete and fulfill the operation requirement. Set-value must be implemented as per requisition.3.1.3 A高厂变、#2启备变所有保护已投入。All protections of unit transformers A 、#2 station transformer must be put into operation.3.1.4 A高厂变、#2启备变冷却器已投入。All cooler system of unit transformers 、#2 station transformer must be put into operation.3.1.5电气和热控的有关表计经过校验，指示正确。Related electric and I&C gauges must be calibrated and correct indication.3.1.6电气和热控的保护、联锁、控制和信号传动试验完成，试验结果正确。Protections, interlock, control and signal transmission test of electric and I&C must be complete and correct.3.2土建应具备的条件：Civil preconditions which should be provided before test3.2.1 试运现场道路畅通，照明充足，事故照明可靠。Roads of trial running area must be smooth. The illumination must be sufficient, and the emergency illumination must be reliable.3.2.2 试运现场通讯设备方便可用。Communication devices of testing area must be convenient for operation.3.2.3 备有足够的消防器材，并且完好可用。Fire-fighting facilities must be sufficient and complete for operation.4 试验步骤Process of test4.1厂用电源系统带负荷切换试验Auxiliary power system on-load change-over test机组启动并网进入带负荷试运阶段时，根据现场实际运行情况，机组带一定负荷且运行稳定后，进行厂用电源切换。After synchronized unit was on-load and stabilized, prosecute the power change-over test as per actual situation. a.6KV 高压厂用电源一次核相Primary phase-compare of 6Kv auxiliary power systemb.6KV A段核相Primary phase-compare of 6Kv unit board Ac.将工作进线小车开关拉出至“检修”位置。Confirm working incoming switch had been pulled out.d.在工作进线开关柜上下端口用6kV校相棒对厂用工作电源和备用电源进行一次定相，要求试验人员带绝缘手套，穿绝缘靴，保持注意力高度集中。Compare the primary phases of auxiliary power and standby power system by 6Kv phase-checking instrument at the upside and downside ports of working incoming switch. Testing personnel must concentrate on progress with insulated gloves and boots.e.确认电压相位正确后，将工作进线小车开关推至“工作”位置，并给上操作电源。After phase confirmed, push the working incoming switch into “service” position and turn on the control power.6.6KV B段核相Primary phase-compare of 6Kv unit board Bf.将工作进线小车开关拉出至“检修”位置。Confirm working incoming switch had been pulled out.g.在工作进线开关柜上下端口用6kV校相棒对厂用工作电源和备用电源进行一次定相，要求试验人员带绝缘手套，穿绝缘靴，保持注意力高度集中。Compare the primary circuit phases of auxiliary operation power and standby power systems by 6Kv phase-checking instrument at the upside and downside ports of working incoming switch. Testing personnel must concentrate on progress with insulated gloves and boots.h.确认电压相位正确后，将工作进线小车开关推至“工作”位置，并给上操作电源。After phase confirmed, push the working incoming switch into “service” position and turn on the control power.4.2并联半自动切换parallel-connecting semiautomatic changeover4.2.1 6KV A段切换Changeover of 6Kv switchgear Aa.确认A高厂变及6kV A分支所有保护已投入。Confirm all protections of A unit transformer and 6Kv A unit board must be in service.b.确认发变组故障录波装置已投入。Confirm generator-transformer unit failure recording device must be in service.c.检查A高厂变电压（6kV侧）、公用A段（6kV侧）电压正常、幅值相近，检查机组运行工况稳定。Confirm the voltage between A unit transformer (high voltage side) and common bus A (low voltage side) must be normal, and the value between two transformers must be approximate. Confirm the unit operating condition must be stabilized.d.在DCS操作画面上选择“并联方式”。在厂用快切装置上选择“并联半自动”方式。Choose “parallel-connecting” on DCS operating screen. Choose “parallel-connecting semiautomation” on changeover device.e.执行切换命令，快切装置自动合上工作进线开关。实现方式应为快速。Execute switchover order, and then working incoming switch would be closed by switchover device automatically. The implementing mode should be “fast”.f.确认进线开关合闸，且A高厂变带上负荷，并无异常现象。Confirm the working incoming switch must be closed, and the A unit transformer must be put on load Confirm nothing abnormal.g.运行人员在DCS操作画面上手动跳开备用进线开关。Operating person trip off working standby incoming switch through ECS manually.h.确认切换正常后，复归A段厂用快切装置，确认装置无闭锁。After confirm switchover, reset unit switchover device of 6.6Kv unit A switchgear and confirm no lockout.4.2.2 6.6KV B段切换Changeover of 6Kv switchgear Ba.确认A高厂变及6Kv B分支所有保护已投入。Confirm all protections of B unit transformer and 6Kv B unit board must be in service.b.确认发变组故障录波装置已投入。Confirm generator-transformer unit failure recording device must be in service.c.检查A高厂变电压（6 kV侧）、公用B段（6kV侧）电压正常、幅值相近，检查机组运行工况稳定。Confirm the voltage between A unit transformer (high voltage side) and common busB (low voltage side) must be normal, and the value between two transformers must be approximate. Confirm the unit operating condition must be stabilized.d.在DCS操作画面上选择“并联方式”。在厂用快切装置上选择“并联半自动”方式。Choose “parallel-connecting” on DCS operating screen. Choose “parallel-connecting semiautomation” on changeover device.e.执行切换命令，快切装置自动合上工作进线开关。实现方式应为快速。Execute switchover order, and then working incoming switch would be closed by switchover device automatically. The implementing mode should be “fast”.f.确认工作进线开关合闸，且A高厂变带上负荷，并无异常现象。Confirm the working incoming switch must be closed, and the A unit transformer must be put on load Confirm nothing abnormal.g.运行人员在DCS操作画面上手动跳开备用进线开关。Operating person trip off standby incoming switch through ECS manually.h.确认切换正常后，复归B段厂用快切装置，确认装置无闭锁。After confirm switchover, reset unit switchover device of 6Kv unit board B and confirm no lockout.4.3并联自动切换parallel-connecting automatic changeover4.3.1 6KV A段切换Changeover of 6Kv switchgear Aa.在DCS操作画面上选择“并联方式”。在厂用快切装置上选择“并联自动”方式。Choose “parallel-connecting” on DCS operating screen. Choose “parallel-connecting automation” on changeover device.b.执行切换命令，快切装置自动合上工作进线开关。并联运行后跳开备用进线开关，实现方式应为快速。Execute switchover order, and then working incoming switch would be closed by switchover device automatically. After parallel connection the standby incoming switch would be disconnected as fast mode.c.确认工作进线开关合闸，备用进线开关跳闸，且A高厂变带上负荷，并无异常现象。Confirm the working incoming switch must be closed and the standby incoming switch must be disconnected, and the A unit transformer must put on load. Confirm nothing abnormal.d.确认切换正常后，复归A段厂用快切装置，确认装置无闭锁。After confirm switchover, reset unit switchover device of 6.6Kv unit A switchgear and confirm no lockout.e.将备用进线开关处于热备用状态。Put the standby incoming switch into hot-standby condition.4.3.2 6KV B段切换Changeover of 6Kv switchgear Ba.在DCS操作画面上选择“并联方式”。在厂用快切装置上选择“并联自动”方式。Choose “parallel-connecting” on DCS operating screen. Choose “parallel-connecting automation” on changeover device.b.执行切换命令，快切装置自动合上工作进线开关。并联运行后跳开备用进线开关，实现方式应为快速。Execute switchover order, and then working incoming switch would be closed by switchover device automatically. After parallel connection the standby incoming switch would be disconnected as fast mode.c.确认工作进线开关合闸，备用进线开关跳闸，且A高厂变带上负荷，并无异常现象。Confirm the working incoming switch must be closed and the standby incoming switch must be disconnected, and the A unit transformer must put on load. Confirm nothing abnormal.d.确认切换正常后，复归A段厂用快切装置，确认装置无闭锁。After confirm switchover, reset unit switchover device of 6.6Kv unit A switchgear and confirm no lockout.e.将备用进线开关处于热备用状态。Put the standby incoming switch into hot-standby condition.4.4 公用电源系统带负荷切换试验Common Auxiliary power system on-load change-over testa.6KV 高压公用电源一次核相Primary phase-compare of 6Kv Common auxiliary power systemb.6KV A段核相Primary phase-compare of 6Kv common service board Ac.将工作进线小车开关拉出至“检修”位置。Confirm working incoming switch had been pulled out.d.在工作进线开关柜上下端口用6kV校相棒对公用工作电源和备用电源进行一次定相，要求试验人员带绝缘手套，穿绝缘靴，保持注意力高度集中。Compare the primary phases of Common auxiliary power and standby power system by 6Kv phase-checking instrument at the upside and downside ports of working incoming switch. Testing personnel must concentrate on progress with insulated gloves and boots.e.确认电压相位正确后，将工作进线小车开关推至“工作”位置，并给上操作电源。After phase confirmed, push the working incoming switch into “service” position and turn on the control power.6KV B段核相Primary phase-compare of 6Kv common service board Bf.将工作进线小车开关拉出至“检修”位置。Confirm CB working incoming switch had been pulled out.g.在工作进线开关柜上下端口用6kV校相棒对公用工作电源和备用电源进行一次定相，要求试验人员带绝缘手套，穿绝缘靴，保持注意力高度集中。Compare the primary circuit phases of Common auxiliary operation power and standby power systems by 6Kv phase-checking instrument at the upside and downside ports of working incoming switch. Testing personnel must concentrate on progress with insulated gloves and boots.h.确认电压相位正确后，将工作进线小车开关推至“工作”位置，并给上操作电源。After phase confirmed, push the working incoming switch into “service” position and turn on the control power.4.5并联半自动切换parallel-connecting semiautomatic changeover4.5.1 6KV A段切换Changeover of 6Kv common service board Aa.确认#2启备变及6kV A分支所有保护已投入。Confirm all protections of #2 station transformer and 6Kv common service board A must be in service.b.确认发变组故障录波装置已投入。Confirm generator-transformer unit failure recording device must be in service.c.检查#2启备变电压（6kV侧）、公用A段（6kV侧）电压正常、幅值相近，检查机组运行工况稳定。Confirm the voltage between #2 station transformer (high voltage side) and common busA (low voltage side) must be normal, and the value between two transformers must be approximate. Confirm the unit operating condition must be stabilized.d.在DCS操作画面上选择“并联方式”。在厂用快切装置上选择“并联半自动”方式。Choose “parallel-connecting” on DCS operating screen. Choose “parallel-connecting semiautomation” on changeover device.e.执行切换命令，快切装置自动合上工作进线开关。实现方式应为快速。Execute switchover order, and then working incoming switch would be closed by changeover device automatically. The implementing mode should be “fast”.f.确认工作进线开关合闸，且#2启备变带上负荷，并无异常现象。Confirm the working incoming switch must be closed, and the #2 station transformer must be put on load Confirm nothing abnormal.g.运行人员在DCS操作画面上手动跳开备用进线开关。Operating person trip off the standby incoming switch through ECS manually.h.确认切换正常后，复归A段厂用快切装置，确认装置无闭锁。After confirm switchover, reset unit switchover device of 6Kv common service board A and confirm no lockout.4.5.2 6KV B段切换Changeover of 6Kv common service board Ba.确认#2启备变及6.6kV A分支所有保护已投入。Confirm all protections of #2 station transformer and 6KV B switchgear must be in service.b.确认发变组故障录波装置已投入。Confirm generator-transformer unit failure recording device must be in service.c.检查#2启备变电压（6kV侧）、公用B段（6kV侧）电压正常、幅值相近，检查机组运行工况稳定。Confirm the voltage between #2 station transformer (high voltage side) and common busB(low voltage side) must be normal, and the value between two transformers must be approximate. Confirm the unit operating condition must be stabilized.d.在DCS操作画面上选择“并联方式”。在厂用快切装置上选择“并联半自动”方式。Choose “parallel-connecting” on DCS operating screen. Choose “parallel-connecting semiautomation” on changeover device.e.执行切换命令，快切装置自动合上工作进线开关。实现方式应为快速。Execute switchover order, and then working incoming switch would be closed by changeover device automatically. The implementing mode should be “fast”.f.确认工作进线开关合闸，且#2启备变带上负荷，并无异常现象。Confirm the working incoming switch must be closed, and the #2 station transformer must be put on load Confirm nothing abnormal.g.运行人员在DCS操作画面上手动跳开备用进线开关。Operating person trip off the standby incoming switch through ECS manually.h.确认切换正常后，复归B段厂用快切装置，确认装置无闭锁。After confirm switchover, reset unit switchover device of 6Kv common service board B and confirm no lockout.4.6并联自动切换parallel-connecting automatic changeover4.6.1 6KV A段切换Changeover of 6Kv common service board Aa.在DCS操作画面上选择“并联方式”。在厂用快切装置上选择“并联自动”方式。Choose “parallel-connecting” on DCS operating screen. Choose “parallel-connecting automation” on changeover device.b.执行切换命令，快切装置自动合上工作进线开关。并联运行后跳开备用进线开关，实现方式应为快速。Execute switchover order, and then working incoming switch would be closed by switchover device automatically. After parallel connection the standby incoming switch would be disconnected as fast mode.c.确认工作进线开关合闸，备用进线开关跳闸，且#2启备变带上负荷，并无异常现象。Confirm the working incoming switch must be closed and the standby incoming switch must be disconnected, and#2 station transformer must put on load Confirm nothing abnormal.d.确认切换正常后，复归A段厂用快切装置，确认装置无闭锁。After confirm switchover, reset unit switchover device of 6Kv common service board A and confirm no lockout.e.将备用进线开关处于热备用状态。Put the standby incoming switch into hot-standby condition.4.6.2 6KV B段切换Changeover of 6Kv switchgearBa.在DCS操作画面上选择“并联方式”。在厂用快切装置上选择“并联自动”方式。Choose “parallel-connecting” on DCS operating screen. Choose “parallel-connecting automation” on changeover device.b.执行切换命令，快切装置自动合上工作进线开关。并联运行后跳开备用进线开关，实现方式应为快速。Execute switchover order, and then working incoming switch would be closed by switchover device automatically. After parallel connection the standby incoming switch would be disconnected as fast mode.c.确认工作进线开关合闸，备用进线开关跳闸，且#2启备变带上负荷，并无异常现象。Confirm the working incoming switch must be closed and the standby incoming switch must be disconnected, and#2 station transformer must put on load Confirm nothing abnormal.d.确认切换正常后，复归B段厂用快切装置，确认装置无闭锁。After confirm switchover, reset unit switchover device of 6Kv common service board B and confirm no lockout.e.将备用进线开关处于热备用状态。Put the standby incoming switch into hot-standby condition.5.注意事项 Notice5.1参加试验的所有工作人员应严格执行厂用电源切换试验方案及现场有关安全规定，确保调试工作安全可靠地进行。All personnel participated in the unit power switchover test should strictly execute the procedure as per the requirement of relevant site-safety-rules, in order to ensure the task safe and reliable.5.2如在试验过程中发现异常情况，应及时调整，并立即汇报指挥人员。Supposed anything abnormal be discovered d
