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qian tan san xiang shu long shi yi bu dian dong ji de qi dong
Author(s): 
Pages: 16
Year: Issue:  2
Journal: Modern Agricultural Machinery

Keyword:  异步电动机三相鼠笼式起动电流定子绕组电动机功率直接起动降压起动三角形连接开始转动同步转速;
Abstract: <正> 三相鼠笼式异步电动机的起动是指电动机从接入三相电源开始到转子稳定运转为止这个过程。起动所用的时间大约从几分之一秒到几秒。转子是从静止状态开始转动的,由于开始转动时定子磁场以同步转速旋转,就使转子绕组(鼠笼)以同步转速切割磁力线,使转子和定子绕组都出现很大的电流。这个电流,我
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