A long shunt compound motor takes a current of 24 A at 400 V supply. The armatur series field and shunt field resistances are 0.6-ohm, 0.4 ohm, and 100 ohms respectively. The iron losses of the motor are 500 watts. Calculate the motor overal efficiency.

A long shunt compound motor takes a current of 24 A at 400 V supply. The armatur series field and shunt field resistances are 0.6-ohm, 0.4 ohm, and 100 ohms respectively. The iron losses of the motor are 500 watts. Calculate the motor overal efficiency.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 13RQ: A squirrel-cage induction motor is operating at 1175 RPM and producing a torque of 22 Ib-ft. What is...

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Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

A long shunt compound motor takes a current of 24 A at 400 V supply. The armature,
series field and shunt field resistances are 0.6-ohm, 0.4 ohm, and 100 ohms
respectively. The iron losses of the motor are 500 watts. Calculate the motor overall
efficiency.

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