a new 3ph induction motor doesn't rotates their ratted speed, why ?
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Answer Posted / satya rout (oeg rr)
A new 3ph IM check some following stepssss.
1.check bearing status
2.winding insulation resistance
3.check earth leakage current
4.check supply connection input (RYB) =output(RYB) is same.
basically phase inter-change is main reason for rotets the bello speed
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