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sdq-660/40 kuang yong ge bao xing shuang su kai guan yan zhi jian shu
Author(s): 
Pages: 30-32
Year: Issue:  5
Journal: Electric Switchgear

Keyword:  矿用隔爆型双速电机电动机漏电闭锁交流接触器短路保护断相保护常闭触头综合保护元件组;
Abstract: 1概述矿井用刮板运输机单速电机是通过耦合器联接的和电动机性能不易配备,而且频繁的高速起动使耦合器喷出高温油而引起矿井火灾事故。国外早已采用双速电机取代。它具有低转速大转矩起动、高速运行,从而消除运输机过载烧毁电机的现象,保证了运输机的正常运转,确保安...
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