A 500V, wave connected, 750 rpm shunt generator supplies a load of 195A. The armature has a resistance of 0.10 ohm and shunt field resistance is 100 ohms. If the resistance/conductor is 55.55 x 10° ohm. Calculate the demagnetizing AT per pole if brushes are advanced through commutator segments at this load. Also, calculate the extra shunt field turns required to neutralize this demagnetization.

A 500V, wave connected, 750 rpm shunt generator supplies a load of 195A. The armature has a resistance of 0.10 ohm and shunt field resistance is 100 ohms. If the resistance/conductor is 55.55 x 10° ohm. Calculate the demagnetizing AT per pole if brushes are advanced through commutator segments at this load. Also, calculate the extra shunt field turns required to neutralize this demagnetization.

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