防跳触点返回时间不同造成控制回路异常分析
Analysis of the Abnormality in the Control Circuit Caused by the Different Return Times of the Anti-jump Contacts
王帅 1高磊 1张腾 1邹亚 1马思宇 1贾浩杰1
作者信息
- 1. 国网河北省电力有限公司衡水分公司,河北 衡水 053000
- 折叠
摘要
在断路器防跳试验中发现防跳继电器无法自动复归问题.分析该断路器控制回路图,并对防跳继电器进行试验,发现断路器防跳回路中存在异常.由于断路器防跳继电器两组触点并不是同时返回,使合闸脉冲消失后防跳继电器无法正确复归,从而断路器无法正确动作.提出并实现了该断路器防跳回路改造方案,改造后对断路器进行了多次防跳试验,断路器均正确动作,保障了设备安全可靠运行.
Abstract
The problem of failure to automatically reset the anti-jump relay was found during the circuit breaker anti-jump test.The control diagram of the circuit breaker was analyzed,and tests were conducted on the anti-jump relay,revealing abnormalities in the circuit breaker's anti-jump circuit.Since two sets of contacts in the circuit breaker's anti-jump relay do not return simultaneously,the anti-jump relay cannot correctly reset after the closing pulse disappears,preventing the circuit breaker from functioning correctly.A modification plan for the circuit breaker's anti-jump circuit was proposed and implemented.After the modification,the circuit breaker multiple anti-jump tests,and it functioned correctly each time,ensuring the safe and reliable operation of the equipment.
关键词
断路器防跳/防跳回路/防跳继电器/返回时间Key words
circuit breaker anti-jump/anti-jump circuit/anti-jump relay/return time引用本文复制引用
出版年
2024
NETL
NSTL
万方数据