A 20 kVA, single phase-phase, 50 Hz, 2200/200 V transformer gave the following test results: O.C. test: 2200 V, applied to primary; power input 220 W S.C test: powersequired to dirculate full-load current in short-orcuited secondary 240 W. Find the efficiency at full-load and half full-load at power factor of 0.8 lagging.?

A 20 kVA, single phase-phase, 50 Hz, 2200/200 V transformer gave the following test results: O.C. test: 2200 V, applied to primary; power input 220 W S.C test: powersequired to dirculate full-load current in short-orcuited secondary 240 W. Find the efficiency at full-load and half full-load at power factor of 0.8 lagging.?

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 3.9P

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