2. 3 of 1.6 kW. Determine the R power factor. Determine the efficiency at half load 0.8 p.f. leading. A 200 kVA transformer has an efficiency of 98% at full load. If the maximum efficiency occurs at three quarters of full load, calculate the efficiency at half load. Assume negligible magnetizing current and p.f. 0.8 at all loads. AALVA 200/400 V single phase transformer has equivalent resistance and reactance referred to low

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.28MCQ
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2.
3
of 1.6 kW. Determine the R
power factor. Determine the efficiency at half load 0.8 p.f. leading.
A 200 kVA transformer has an efficiency of 98% at full load. If the maximum efficiency occurs at three
quarters of full load, calculate the efficiency at half load. Assume negligible magnetizing current and p.f.
0.8 at all loads.
AALVA 200/400 V single phase transformer has equivalent resistance and reactance referred to low
Transcribed Image Text:2. 3 of 1.6 kW. Determine the R power factor. Determine the efficiency at half load 0.8 p.f. leading. A 200 kVA transformer has an efficiency of 98% at full load. If the maximum efficiency occurs at three quarters of full load, calculate the efficiency at half load. Assume negligible magnetizing current and p.f. 0.8 at all loads. AALVA 200/400 V single phase transformer has equivalent resistance and reactance referred to low
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