A 250 V series motor draws a current of 40 A. The armature resistance is 0.15 Qand the field resistance is 0.05 Q. Determine the maximum efficiency of themotor83.8 O93.6 O9095.6

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Answered: A 250 V series motor draws a current of…

A 250 V series motor draws a current of 40 A. The armature resistance is 0.15 2 and the field resistance is 0.05 Q. Determine the maximum efficiency of the motor 83.8 93.6 90 95.6 O

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 11RQ

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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 250 V series motor draws a current of 40 A. The armature resistance is 0.15 Q
and the field resistance is 0.05 Q. Determine the maximum efficiency of the
motor
83.8 O
93.6 O
90
95.6

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