3. A 120 KVA transformer has a maximum efficiency of 98% and this condition occurs at 10% under load, both at 0.9 pf. Calculate the efficiency at half-load, 0.8 power factor.
3. A 120 KVA transformer has a maximum efficiency of 98% and this condition occurs at 10% under load, both at 0.9 pf. Calculate the efficiency at half-load, 0.8 power factor.
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 3.4MCQ: An ideal transformer has no real or reactive power loss. (a) True (b) False
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