How will you Physically differentiate A.C and D.C motor?
Answer Posted / avnish sharma
1. check out for Brushes. If Brushes are there then it is for sure DC motor. If not then
2 Cooling fins for ventilation are to be checked. if cooling fins are there, then it is AC motor.
Cooling fins can be seen from a long distance also as it is external....
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in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly
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