Answered: 50 Hz four-pole turbo generator rated…

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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Question

A 50 Hz four-pole turbo generator rated 20 MVA, 13.2 kV has an inertia constant of H = 9.0 kWsec/kVA. Determine the K.E. stored in the rotor at synchronous speed. Determine the acceleration
if the input less the rotational losses is 25000 HP and the electric power developed is 15000 kW.
If the acceleration computed for the generator is constant for a period of 15 cycles, determine the
change in torque angle in that period and the r.p.m. at the end of 15 cycles. Assume that the
generator is synchronized with a large system and has no accelerating torque before the 15 cycle
period begins

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