对小型真空开关的改进及其应用  

The Soft Starter Controls Eletric Motor to Run in Double Speed

作　　者：马桂荣[1] 孔三喜[1] 

机构地区：[1]平顶山工业职业技术学院,河南平顶山467001

出　　处：《机电产品开发与创新》2008年第1期78-79,共2页Development & Innovation of Machinery & Electrical Products

摘　　要：对原真空开关保护电路存在问题进行了分析,进而介绍了数字化保护电路,提高供电的可靠性。The thesis introduces the method that the electromagnetic Starter how to start,and, discusses that using soft starter to drag heavy-duty machinery and reduce the attactim between electric current and electric fence.Smooth Starting meets rhe requirement of start torgue, and make heavy-duty machinery low start and high run.

关 键 词：保护接地 漏电保护 保护接零 

分 类 号：TN1[电子电信—物理电子学]