电气设备检修与故障诊断
500kV断路器保护未正确沟通三跳分析
马越, 朱茂森
江苏省电力有限公司检修分公司,南京 210003
Analysis of fault operation of communicated three-phase trip of 500kV circuit breaker protection
MA Yue, ZHU Maosen
Maintenance Branch of State Grid Jiangsu Electric Power Co., Ltd, Nanjing 210003
摘要 沟通三跳功能广泛应用在500kV继电保护中,具有十分重要的作用。目前沟通三跳功能大多通过断路器保护内部逻辑判断实现,但不同厂家对于该功能的逻辑设计存在一定差异。本文对一起500kV中断路器保护未正确沟通三跳的原因进行分析,并总结常见500kV断路器保护的沟通三跳逻辑,最后给出一些思考和建议供运维检修人员参考。
关键词 ：
断路器保护 ,
沟通三跳 ,
运维检修
Abstract ：Communicated three-phase trip is widely used and plays an important role in 500kV relay protection. This function is mostly accomplished by internal logic judgment of circuit breaker protection, but there are some differences among manufactures. The reason of a fault operation case of communicated three-phase trip of 500kV circuit breaker protection is analyzed, and the logic of communicated three-phase of several type 500kV circuit breaker protections is summarized. Some suggestions about relay maintenance are given in the end.
Key words ：
circuit breaker protection
communicated three-phase trip
operation and maintenance
收稿日期: 2021-01-13
作者简介 : 马 越（1989—）,男,南京市人,硕士,工程师,主要从事电网继电保护运维检修及运行分析工作。
引用本文:
马越, 朱茂森. 500kV断路器保护未正确沟通三跳分析[J]. 电气技术, 2021, 22(8): 45-47.
MA Yue, ZHU Maosen. Analysis of fault operation of communicated three-phase trip of 500kV circuit breaker protection. Electrical Engineering, 2021, 22(8): 45-47.
链接本文:
http://dqjs.cesmedia.cn/CN/Y2021/V22/I8/45
[1] 马越, 胡鹤轩. 500kV线路重合闸未动作案例分析[J].电工技术, 2019(19): 102-103.
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