摘要
介绍了变频器工作原理,从漏电动作电阻整定值、漏电闭锁电阻整定值等方面分析了变频器漏电流产生原因,研究了井下低压检漏继电器应具备的功能以及漏电保护装置的选择,以期有助于提高矿用变频器漏电保护能力,更好地保障矿井安全生产。
This paper introduces the working principle of frequency converter,and analyzes the cause of leakage current of inverter from the aspects of setting value of leakage action resistance,setting value of leakage latchup resistance and so on.The function of underground low voltage leak detection relay and the selection of leakage protection device are studied in order to improve the leakage protection ability of mine frequency converter and ensure the safety of mine production.
作者
任哲
Ren Zhe(Yungang Coal Mine of Datong Coal Mine,Datong Shanxi 037017)
出处
《机械管理开发》
2018年第3期138-140,共3页
Mechanical Management and Development
关键词
矿用变频器
工作原理
漏电流
原因
漏电保护
mine frequency converter
working principle
leakage current
cause
leakage protection
