A 600V supply is coupled to a three-phase induction motor with a nominal rating of 100 horsepower (75 KW) and a synchronous speed of 1800 r/min. The ammeter revealed a line current of 78A, and the two-wattmeter approach showed a total power usage of 70kW. The rotor speed is 1763 revolutions per minute, according to accurate measurements. If the iron losses are 2 kW, and the windage and friction losses are 1.2 KW, (the resistance between the two terminals of the stator is 0.342

A 600V supply is coupled to a three-phase induction motor with a nominal rating of 100 horsepower (75 KW) and a synchronous speed of 1800 r/min. The ammeter revealed a line current of 78A, and the two-wattmeter approach showed a total power usage of 70kW. The rotor speed is 1763 revolutions per minute, according to accurate measurements. If the iron losses are 2 kW, and the windage and friction losses are 1.2 KW, (the resistance between the two terminals of the stator is 0.342

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter39: Synchronous Motor Operation

Section: Chapter Questions

Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...

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