A synchronous motor takes 25 kW from 400 V supply mains. The synchronous reactance of the motor is 4 ohms. Calculate the power factor at which the motor would operate whe the field excitation is so adjusted that the generated EMF is 500 volts. [ 0.666 Leading]

A synchronous motor takes 25 kW from 400 V supply mains. The synchronous reactance of the motor is 4 ohms. Calculate the power factor at which the motor would operate whe the field excitation is so adjusted that the generated EMF is 500 volts. [ 0.666 Leading]

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

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter7: Alternating Current, Power Distribution, And Voltage Systems

Section: Chapter Questions

Problem 3RQ

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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.

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A synchronous motor takes 25 kW from 400 V
supply mains. The synchronous reactance of
the motor is 4 ohms. Calculate the power
factor at which the motor would operate when
the field excitation is so adjusted that the
generated EMF is 500 volts. [ 0.666 Leading]

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