Answer Posted / saravanan.p
In AC motor, The important factor is magnetic field between
stator and rotor. In DC, no flex will come. While the motor
energized by DC, the stator winding will act as a conductor
and produce the heat. Hence winding will get damage and it
will loose the insulation strength.
In rotor side, nothing will happen.
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Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV
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