摘要
本文对电流取样型电机保护器进行了较详细介绍,并对NE556双时基电路构成的保护器以工作原理,断相保护、过载保护均作了介绍。
There are detailed introduction about the current - sampling electromotor protector, also details about the working principles, phase failure protection and overload protection of the protector which consist of the NE556 double - time standard.
出处
《机床电器》
2008年第3期58-59,共2页
Machine Tool Electric Apparatus
关键词
电流取样
断相保护
过载保护
工作原理
current sampling
phase failure protection
overload protection
working principles