32 A 10 kVA, 2200/220 V transformer gave the following test results: Open circuit test, High voltage side open: V = 220 V, 1 = 1.5 A, W= 150 W. Short-circuit test. Low voltage side short-circuited: V= 115 V, I = rated, W = 200 W. The half full-load efficiency of the transformer operating at unity %3D %3D %3D %3D power factor is (a) 95% (b) 95.5% (c) 96% (d) 96.5

32 A 10 kVA, 2200/220 V transformer gave the following test results: Open circuit test, High voltage side open: V = 220 V, 1 = 1.5 A, W= 150 W. Short-circuit test. Low voltage side short-circuited: V= 115 V, I = rated, W = 200 W. The half full-load efficiency of the transformer operating at unity %3D %3D %3D %3D power factor is (a) 95% (b) 95.5% (c) 96% (d) 96.5

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 3.57P: A two-winding single-phase transformer rated 60kVA,240/1200V,60Hz, has an efficiency of 0.96 when...

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