摘要
高阻抗差动继电器是反映电机及电缆接地短路故障的保护。某电厂大型电动机(电动给水泵)选用ABB公司所产SPAE010型高阻抗保护继电器作为差动主保护。文章详细介绍了该装置的保护原理,并对运行期间出现的一些故障进行了分析及处理。
High-impedance differential relay is the protection reflecting the grounding short-circuit fault of motors and cables.SPAE010 high impedance protection relay produced by ABB is selected as differential main protection for a large motor(electric feed pump)in a power plant.This paper introduces the protection principle of the device in detail,analyzes and processes some faults during operation.
作者
赵江
易晋松
ZHAO Jiang;YI Jinsong(Hainan Nuclear Power Co.,Ltd.,Changjiang 572733,China)
出处
《电工技术》
2019年第24期34-35,共2页
Electric Engineering
关键词
电动机
差动
高阻抗
motor
differential
high impedance