DC series motor, having an the armature resistance of 0.1 ohm and field resistance of 0.05 ohm, takes 80A at 250V and 650 rpm. 1-If the iron and frictional loss are 100 W, calculate the developed torque and efficiency. 2-If an external resistance of 1 ohm is inserted in series with motor; calculate the new steady state armature current and the speed. Assume the torque is proportional to the square of speed.

Q: following: a)Types

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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.