This article proposes the operating principle and the program block-diagram of the automatic switching control to the main circuit-breaker on board of each powered unit of the train at proper time.
本文介绍了该装置对列车各车组适时进行主断路器自动分合闸控制的工作原理及程序框图。
2
A digital molded case circuitbreaker (MCCB) automatic protection characteristic test platform was developed.
开发了一种数字式全自动塑壳断路器保护特性检测台。
3
In order to prevent fire effectively, fire automatic protection type residual current circuitbreaker was developed.