How to identify Motor leads in their order coming out from
winding without tag (U1, V1, W1 & U2, V2, W2)?
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Answer Posted / pswin
Find three windings in the motor by using multimeter.Then
connect three windings to be star connection.After that try
to run the motor by supply.See the motor rotation from
shaft side.If the motor rotation is counterclockwise,change
any one of phase to another(R&B,R&Y or Y&B).Then u will see
motor will run in clockwise direction. If we get clockwise
rotation, u can mark R to U1, Y to V1 and B to W1. The rest
U2,V2 and W2 will be at the star point.Now U can mark as
U2,V2 and W2 at the other ends of each U1,V1 and W1.If u
know about phase sequence very well, u will find that motor
terminals are not important.Important thing is which
rotation we need and how we will feed to get right rotation
we want.
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