3. A 20kW, 250V, 1000rpm shunt excited de motor has armature and field resistances of 0.2 ohm and 200 S2. When the motor takes 80A rated current at rated conditions. Draw the equivalent circuit and calculate induced torque at 1200rpm. Explain the starting current limiting methods for DC motors.

3. A 20kW, 250V, 1000rpm shunt excited de motor has armature and field resistances of 0.2 ohm and 200 S2. When the motor takes 80A rated current at rated conditions. Draw the equivalent circuit and calculate induced torque at 1200rpm. Explain the starting current limiting methods for DC motors.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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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

3. A 20kW, 250V, 1000rpm shunt excited de motor has armature and field resistances of 0.2 ohm
and 200 S2. When the motor takes 80A rated current at rated conditions. Draw the equivalent
circuit and calculate induced torque at 1200rpm. Explain the starting current limiting methods for
DC motors.

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