A 2300V, 1000KVA, 0.8PF lagging, 60HZ, two-pole, Y connected synchronous generator has a synchronous reactance of 1.10 and a armature resistance of 0.150. at 60HZ, its friction and windage losses are 20,000W, and its core losses are 18,000w. the field circuit has a DC voltage of 200V and the maximum lr is 10A. the resistance of the field circuit is adjustable over the range from 20 to 20on. The open circuit characteristics is shown in figure below: a) How much field current is required to make Va equal to 2100V when the generator is running at no load? b) What is internal generated voltage of this machine at 80% of rated condition? c) How much field current is required to make Va equal to 2100V when the generator is running at 80% of rated condition? d) How much power and torque must the generator's prime mover be capable of supplying? 20

A 2300V, 1000KVA, 0.8PF lagging, 60HZ, two-pole, Y connected synchronous generator has a synchronous reactance of 1.10 and a armature resistance of 0.150. at 60HZ, its friction and windage losses are 20,000W, and its core losses are 18,000w. the field circuit has a DC voltage of 200V and the maximum lr is 10A. the resistance of the field circuit is adjustable over the range from 20 to 20on. The open circuit characteristics is shown in figure below: a) How much field current is required to make Va equal to 2100V when the generator is running at no load? b) What is internal generated voltage of this machine at 80% of rated condition? c) How much field current is required to make Va equal to 2100V when the generator is running at 80% of rated condition? d) How much power and torque must the generator's prime mover be capable of supplying? 20

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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