A 400 V series motor has a field resistance of 0.02 ohm and an armature resistance of 0.1 ohm. The motor takes 30 A of current at 1000 rpm while developing full load torque. What is the motor speed when this motor develops 60 % of full load torque and the shunt is shunted by a resistor of 0.03 ohm? [Ans. 1294.98 rpm]

A 400 V series motor has a field resistance of 0.02 ohm and an armature resistance of 0.1 ohm. The motor takes 30 A of current at 1000 rpm while developing full load torque. What is the motor speed when this motor develops 60 % of full load torque and the shunt is shunted by a resistor of 0.03 ohm? [Ans. 1294.98 rpm]

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 400 V series motor has a field resistance of 0.02 ohm and an armature
resistance of 0.1 ohm. The motor takes 30 A of current at 1000 rpm while
developing full load torque. What is the motor speed when this motor
develops 60 % of full load torque and the shunt is shunted by a resistor
of 0.03 ohm? [Ans. 1294.98 rpm]

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