摘要
本文对煤矿井下隔爆高压开关综合保护装置进行升级,防止电网电压出现瞬间波动时,引发井下隔爆高压开关综合保护装置低电压保护动作,造成井下大面积停电停风现象。经现场安装试验,效果显著,提高了矿井高压供电的可靠性。
In this paper,the comprehensive protection device of explosion-proof high-voltage switch in coal mine was upgraded to prevent the low-voltage protection action of the comprehensive protection device of explosion-proof high-voltage switch in underground mine when the voltage of power grid fluctuates instantaneously,resulting in large-scale blackouts and blackouts in underground mine.Field installation test showed that the effect was remarkable and the reliability of high voltage power supply in mine was improved.
作者
黄玉冬
HUANG Yudong(Henan Energy Yongcoal Company Cheji Coal Mine,Yongcheng Henan 476600)
出处
《河南科技》
2019年第1期73-74,共2页
Henan Science and Technology
关键词
晃电
低电压
延时
power shaking
low voltage
delay
