A synchronous motor with a 480 V, 100 kW, 0.85 PF leading, 50 Hz, six poles, Y-connected, and has synchronous reactance of 1.5 N and a negligible armature resistance. The rotational losses are also to be ignored. This motor is to be operated over a continuous range of speeds from 500 to 1000 r/min, where the speed changes are to be accomplished by controlling the system frequency with a solid-state drive. (a) Identify the range of input frequency that be varied due to provide the speed control range? How much the maximum generated voltage, Ea at the motor's rated conditions? (b) What is the maximum power of the motor at the rated conditions?

A synchronous motor with a 480 V, 100 kW, 0.85 PF leading, 50 Hz, six poles, Y-connected, and has synchronous reactance of 1.5 N and a negligible armature resistance. The rotational losses are also to be ignored. This motor is to be operated over a continuous range of speeds from 500 to 1000 r/min, where the speed changes are to be accomplished by controlling the system frequency with a solid-state drive. (a) Identify the range of input frequency that be varied due to provide the speed control range? How much the maximum generated voltage, Ea at the motor's rated conditions? (b) What is the maximum power of the motor at the rated conditions?

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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