A 230v 25hp shunt dc motor draws an armature current of


A 230V, 25hp, shunt DC motor draws an armature current of 90Aat full rated load. The armature resistance is 0.2 ohms and theshunt field resistance is 216 ohms. Determine the rotational lossesand motor efficiency at full load.

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Electrical Engineering: A 230v 25hp shunt dc motor draws an armature current of
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