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Author:
Journal / Book Title:
Year:
Volume:
Issue:
wen da
Author(s):
XIAO Liangzuo
,
ZHOU Chao
Pages:
28+31
Year:
1981
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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