6- A 100KVA, 1000/10000V, 50HZ transformer has an iron loss of 1200w. the copper loss with 6A in the high-voltage winding is 50ow. calculate the efficiencies at i) 25%; ii) 50% and iii) 100% of normal load for power factors a/1.0 and b/ 0.8, the output terminals voltage being maintained at 10000V. find also the load for maximum efficiency at both power factors. [a/ i) 95.100%; ii) 97.000% iii) 97.470%, 93KVA b/ i) 93.950% ii) 96.270% iii) 96.860% ; 93KVA

6- A 100KVA, 1000/10000V, 50HZ transformer has an iron loss of 1200w. the copper loss with 6A in the high-voltage winding is 50ow. calculate the efficiencies at i) 25%; ii) 50% and iii) 100% of normal load for power factors a/1.0 and b/ 0.8, the output terminals voltage being maintained at 10000V. find also the load for maximum efficiency at both power factors. [a/ i) 95.100%; ii) 97.000% iii) 97.470%, 93KVA b/ i) 93.950% ii) 96.270% iii) 96.860% ; 93KVA

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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