220kV及以上变电站开关场一次干扰对二次控制电缆的影响  

Influence of Electromagnetic Interference of Switchyard on Secondary Control Cable in 220kV and above Substation

作　　者：黄勇[1] 肖平[1] 

机构地区：[1]宜宾电业局,四川宜宾644002

出　　处：《四川电力技术》2008年第2期10-10,13,共2页Sichuan Electric Power Technology

摘　　要：对一起因220kV一次设备在倒闸操作过程中,电动机电源开关突然跳闸,致使隔离开关动、静触头之间产生电弧,危及电网和设备安全的这一危险情况进行了分析,找出危险根源,强调执行反事故措施的重要性。In the process of switching operation of 220kV primary equipment, the switch of motor power source tripped suddenly, and then electric are occurred between the moving contact and stationary contact of disconnecting switch. Therefore, the safety of power grid and equipment were threatened. After analyzing the situation, the cause is found out that is electromagnetic interference, and the importance of carrying out the anti- accident measures is emphasized.

关 键 词：隔离开关 二次回路 电磁干扰 

分 类 号：TM732[电气工程—电力系统及自动化]