摘要
介绍了弧光接地过电压的危害,当系统发生间歇性弧光接地时,消弧消谐装置作为过电压抑制的主保护与零序保护配合同步动作可有效抑制系统过电压,保护电气设备绝缘,为电网的安全可靠运行提供了保证。
The harm of arc grounding overvoltage is introduced. When intermittent arcgrounding occurs in the system, arc suppression harmonic elimination device can effectivelyrestrain system overvoltage with synchronous movement of main protection and zero sequenceprotection of overvoltage suppression, to protect electrical equipment insulation and ensure safeand reliable operation of power grid.
作者
张嘉龙
ZHANG Jialong(Power plant of the Energy Center of Jiuquan Iron and Steel Group, Jiayuguan, Gansu 735100, China)
出处
《冶金动力》
2017年第1期49-51,共3页
Metallurgical Power
关键词
消弧消谐装置
零序保护
接地
arc suppression harmonic elimination device
zero sequence protection
grounding
