BK5200进口模块

BK5200进口模块

（1）相间电阻均匀,不要去管电阻多大,均匀就行.对大于15KW的电机你可能怎么量都是0欧姆,那是因为万用表的量程太大了.换个微欧姆表才行.

（2）相线对电机外壳绝缘大于1M欧姆, 怎么样判断三相异步电机的好坏？ 量单相电动机时应断开电容 1、万用表测电流，三相不平衡率不大于10%； 2、摇表测绝缘，每相对地、相间均不小于0.5兆;

（3）电桥测直流电阻，三相不平衡率不大于2%；

（4）除了楼上说的方法，检查其绕组是否正常的方法是在其中任意两根引线上接上万用表的小电流档（比如50微安），这时用用转动电机，万用表的表针应该是可以明显摆动（与转动快慢有关）。

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