一起110kV断路器操作箱防跳异常问题的探讨

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摘要某110kV断路器保护装置在试验工作中,当测试操作箱防跳跃回路的功能时,发现断路器在合上位置,且重合闸出口压板投入时,通过测控屏上的合闸把手保持合闸指令,然后发出跳闸指令,断路器跳闸后会再次合闸,而防跳保护没有实现防跳功能。分析得知,主要是因为同期手合时合闸指令的返回时间比重合闸返回时间快造成的。本文提出并进行了针对此类操作箱防跳跃回路正确试验,且分别在不同厂家装置上进行试验,证明防跳保护可靠,实现了防跳跃功能。这对保护测控装置定检、验收和防跳跃回路故障排查等均具有一定的参考作用和指导意义。

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	吕梦丽

关键词 ：断路器, 防跳跃, 操作箱, 检同期, 合闸回路

Abstract：In one periodic test on the anti-bouncing circuit of 110kV circuit breaker protection and monitoring device, we found if we sent a tripping order after switching on circuit breaker and keeping switching dictation by the switching handle on measurement a control panel, circuit breaker didn't switch after tripping, but circuit breaker will switch again after tripping if the outlet pressure plate of auto-reclosure was adopted. The anti-bouncing circuit implemented actually. It is considered due to the return time of switching dictation of synchronization was faster than that of auto-reclosure. The suggestion and test method were proposed for such an operation box anti-bouncing circuit. And it has certain reference and practical significance for scheduled check, acceptance, and troubleshooting, etc.

Key words： circuit breaker anti-bouncing microcomputer protection check the same period switching

出版日期: 2017-10-24

作者简介: 吕梦丽（1989-）,女,湖北荆门市人,硕士研究生,助理工程师,继电保护高级工,主要从事电力系统及继电保护自动化工作。

引用本文:

吕梦丽. 一起110kV断路器操作箱防跳异常问题的探讨[J]. 电气技术, 2017, 18(10): 127-130. Lv Mengli. Analysis the Abnormal Phenomenon on 110kV Breaker Anti-bouncing Circuit of Microcomputer Protection. Electrical Engineering, 2017, 18(10): 127-130.

链接本文:

http://dqjs.cesmedia.cn/CN/Y2017/V18/I10/127