A 200 Hp, 400 V, 1800 r/min DC generator has an overall efficiency of 95% and the1'R losses in the armature is 0.025 pu. The shunt field resistance is 50 Q and the ratedfield current, IF is 5A.(i)Calculate the total losses in the generator.(ii)Estimate the torque needed to drive the generator at 1800 r/min, consideringthe shunt field is powered by a separate source, Pin = 220 000 W and the speedis 150 rad/s.(iii)Given that the no-load weight of the generator is 1200 kg and the on-1oad weightof the generator is 2100 kg. Determine the suitable weight to be consideredtowards getting the output power to weight ratio of the generator as the finalresult and propose the suitable excitation for this DC generator

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A 200 Hp, 400 V, 1800 r/min DC generator has an overall efficiency of 95% and the 1'R losses in the armature is 0.025 pu. The shunt field resistance is 50 Q and the rated field current, Ir is 5A. (i) Calculate the total losses in the generator.

A 200 Hp, 400 V, 1800 r/min DC generator has an overall efficiency of 95% and the 1'R losses in the armature is 0.025 pu. The shunt field resistance is 50 Q and the rated field current, Ir is 5A. (i) Calculate the total losses in the generator.

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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