高压电机短路跳闸再启导致受电保护越级跳闸的分析及对策  

Analysis and Countermeasures of Skip Tripping of Power Receiving Pro⁃tection Caused by Restart from Short Circuit Tripping of High Voltage Motor

作　　者：刘智成 LIU Zhicheng(Hongsheng Electricity and Heating Co.,Ltd.,Jiuquan Iron and Steel Group,Jiayuguan,Gansu 735100,China)

机构地区：[1]酒钢集团宏晟电热公司,甘肃嘉峪关735100

出　　处：《冶金动力》2021年第6期11-14,共4页Metallurgical Power

摘　　要：详细分析了高压电机跳闸后再启动导致越级跳闸保护动作、母线失压的事故原因,提出了解决方案,并进行了实施,为电力系统的安全运行提供了保障。The accident causes of skip tripping protection action and bus voltage loss caused by restart of high-voltage motor after tripping are analyzed in detail,and solutions are put forward and implemented,which provides a guarantee for the safe operation of pow⁃er system.

关 键 词：相间短路 合闸于故障点 越级跳闸 

分 类 号：TM713[电气工程—电力系统及自动化]