Answer / payalbhendarkar

I think you are saying about DOL connection for 3phase, 10hp motor. DOL means direct online starter. as per calculation for 10 HP, Power= VI/ (ROOT 3 X COS PHI) where V is three phase voltage, I is current , P-is power cos phi is 0.8 (for inductive load). Cuurrent will be 13AMP.

Can we use a absolute encoder to show rpm of a motor ? what about the condition when power is off ? what is difference if a incremental one is used ?abanirout@gmail.com

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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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