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Reconnecting Induction Motors 16.a. A 12-pole 575-volt 60-Hz motor has a chord factor o{ 0.892. If the motor is reconnected as a 16-pole motor with a chord factor of 0.968, the operating voltage due to changes in the chord factor and in the speed is A. 682 volts B. 780 volts C. 468 volts D. 398 volts 16.b. If a 10-pole 50-Hz motor should operate at the same speed on a 60-Hz circuit, the motor should be reconnected to produce A. 14 poles. B. 12 poles. C. 16 poles. D. 8 poles.

Reconnecting Induction Motors 16.a. A 12-pole 575-volt 60-Hz motor has a chord factor o{ 0.892. If the motor is reconnected as a 16-pole motor with a chord factor of 0.968, the operating voltage due to changes in the chord factor and in the speed is A. 682 volts B. 780 volts C. 468 volts D. 398 volts 16.b. If a 10-pole 50-Hz motor should operate at the same speed on a 60-Hz circuit, the motor should be reconnected to produce A. 14 poles. B. 12 poles. C. 16 poles. D. 8 poles.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Reconnecting Induction Motors

16.a. A 12-pole 575-volt 60-Hz motor has a chord factor o{ 0.892. If the motor is reconnected as a 16-pole
motor with a chord factor of 0.968, the operating voltage due to changes in the chord factor and in the
speed is
A. 682 volts
B. 780 volts
C. 468 volts
D. 398 volts
16.b. If a 10-pole 50-Hz motor should operate at the same speed on a 60-Hz circuit, the motor should be
reconnected to produce
A. 14 poles.
B. 12 poles.
C. 16 poles.
D. 8 poles.

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