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wen da
Author(s): 
Pages: 28+31
Year: Issue:  10
Journal: Farm Machinery

Keyword:  正负极直流法电动机转速引出线相序三相电动机星形接法转速表额定转速电机空载;
Abstract: <正>1.电动机六根引出线头上标号不清,如何确定相序? 答:分两步进行: 1.用直流法找出三组绕组。(1)用万用表测定,两个线头通路为一组;(2)用干电池和相匹配的灯泡测定,电灯泡亮的为一组。 2.将电动机的第一组两根线头接在万用表的正负极两接线柱上,第二组的两根线头接在1.5伏的干电池两极上,找出三组绕组的首尾相序。(1)如果万用
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