A 25-hp 240-V 77.8-A shunt motor has an armature resistance of 0.083 N and a field-circuit resistance of 125 N. Calculate the copper losses when the motor is operating at rated conditions. If the half-load armature current of the motor in Prob. 11.1 is 40 A, determine all copper losses.

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Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.