一起220 kV断路器合闸故障分析与处理
|
摘要
介绍了一起220 kV断路器合闸故障的详细经过及其故障查找和原因分析,查明该断路器在线路发生单相永久故障情况下,经"重合闸—加速跳闸"动作过程后,非故障相防跳继电器通过跳位监视回路接通,导致防跳继电器带电,其串入合闸回路的常闭节点断开,导致合闸回路断开。在此基础上提出了有效整改措施,为解决断路器的类似故障提供借鉴。
This paper introduces the detailed process,fault diagnosis and reason analysis of a 220 kV breaker closing fault. It is found out that under the condition of single-phase permanent fault in the line and after the operation process of "reclosing-accelerating trip",the anti-jump relays of the non-fault phases get electrified through the trip monitor circui. The normally closed nodes of the anti-jump relays in the closing circuit are disconnected,resulting in the closing circuit being disconnected. Based on this,an effective rectification measure is proposed providing a reference for solving the similar fault circuit breaker.
This paper introduces the detailed process,fault diagnosis and reason analysis of a 220 kV breaker closing fault. It is found out that under the condition of single-phase permanent fault in the line and after the operation process of "reclosing-accelerating trip",the anti-jump relays of the non-fault phases get electrified through the trip monitor circui. The normally closed nodes of the anti-jump relays in the closing circuit are disconnected,resulting in the closing circuit being disconnected. Based on this,an effective rectification measure is proposed providing a reference for solving the similar fault circuit breaker.
引文
[1]颜华敏,顾国平,陆敏安,等.一起断路器防跳回路异常分析及改造[J].电力系统保护与控制,2010,38(12):138-140.
[2]邱涛,井雨刚,杜绍辉.断路器两套防跳回路配合问题探讨[J].山东电力技术,2012,38(12):138-140.
[3]李正红,文小平.一起220 k V断路器单相拒合故障分析及防范措施[J].电力自动化设备,2011,31(5):145-151.
[4]杨俊锋.一起GIS断路器控制回路故障的分析与处理[J].高压电器,2009,45(6):158-160.
[5]林智敏,李庆凯,蔡恒滨,等.一起GIS断路器合闸故障分析与处理[J].高压电器,2012,48(2):99-101.
[6]段剑,张立群,甑利,等.一起500 k V断路器故障的分析和治理[J].高压电器,2010,46(7):90-92.
[7]唐跃林,伍平,谢林涛,等.一台252 k V SF6断路器合闸故障分析及处理[J].高压电器,2011,47(2):72-75.
[2]邱涛,井雨刚,杜绍辉.断路器两套防跳回路配合问题探讨[J].山东电力技术,2012,38(12):138-140.
[3]李正红,文小平.一起220 k V断路器单相拒合故障分析及防范措施[J].电力自动化设备,2011,31(5):145-151.
[4]杨俊锋.一起GIS断路器控制回路故障的分析与处理[J].高压电器,2009,45(6):158-160.
[5]林智敏,李庆凯,蔡恒滨,等.一起GIS断路器合闸故障分析与处理[J].高压电器,2012,48(2):99-101.
[6]段剑,张立群,甑利,等.一起500 k V断路器故障的分析和治理[J].高压电器,2010,46(7):90-92.
[7]唐跃林,伍平,谢林涛,等.一台252 k V SF6断路器合闸故障分析及处理[J].高压电器,2011,47(2):72-75.