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一起500kV断路器无故障跳闸事故原因分析及处理

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针对某1000 kV变电站发生的一起500 kV断路器无故障跳闸事件,结合动作现象,从绝缘、插件入手分析原因,确定断路器保护插件故障后,对插件进一步试验分析,确定插件故障原因,并制定了有效措施,避免了跳闸事件的发生.
Analysis and Treatment of a Fault-free Tripping Accident of a 500 kV Circuit Breaker
A fault-free tripping event of a 500 kV circuit breaker occurred in a 500 kV substation.Combining action phe-nomena,the reasons from the perspective of insulation and plug-in based on action phenomena is analyzed.After determi-ning the fault of the circuit breaker protection plug-in,further experimental analysis is conducted on the plugin to deter-mine the cause of malfunction.Effective measures are also proposed to avoid the occurrence of tripping events

circuit breakerultra-high voltageoperation boxcircuit breaker protection

齐肖彬、范辰旭、王会增、王晨宇

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国网河北省电力有限公司超高压分公司,河北 石家庄 050070

断路器 超高压 操作箱 断路器保护

2024

电工技术
重庆西南信息有限公司(原科技部西南信息中心)

电工技术

影响因子:0.177
ISSN:1002-1388
年,卷(期):2024.(11)