摘要
介绍了一起由于工频交流电源窜入直流系统引起的500 k V变电站断路器跳闸事故,对事故原因进行了分析,主要原因是交流电源窜入直流系统及控制电缆分布电容较大,并从管理和技术方面提出防范措施。
This paper introduces the circuit breaker tripping accident caused by the power frequency AC intrusion into DC system of 500 kV substation. The cause of this accident is analyzed,the cause of the accident has two main reasons： the power frequency AC intrusion into DC system, controling distribution of the cable capacitance is large. The preventive measures from management and technology are put forward.
出处
《东北电力技术》
2016年第10期53-55,共3页
Northeast Electric Power Technology
关键词
直流系统
交流干扰
分布电容
断路器跳闸
DC system
AC interference
distributed capacitance
breaker tripping
