主空压机防主触头熔焊故障电路的设计

A Circuit Design for Preventing Main Air Compressor Breakdown on Main Contact Metal Meltdown

根据“霸王岭”轮主空压机电机主电路主触头经常熔焊,而又经常引起总配电板主开关跳闸这一严重故障现象,设计一个短延时先后接通或断开的保护电路,从而解除了该熔焊故障的危害,为确定双主触头运行时主触点熔焊状态,设计一个指示电路便于维护。

Aimed at the trip of main switch in switch board caused by the breakdown of main contact in main circuit of main air compressor motor of＂ Ba Wang Ling＂ ship, a short delay on-off circuit is designed for the protection. Otherwise ,to identify the state of main contact melt weld in operating, indicting circuit is designed for easy maintenance.