01 A 10 kVA, 500/2000 V, single-phase, 50 Hz transformer gave the following test results : 500 V at normal frequency applied to primary; power absorbed 120 W O.C. test S.C. test : 15 V at normal frequency applied to primary circulated full-load current in the short-circuited secondary; power absorbed 100 W Calculate (i) efficiency at full-load at unity p.f. (ii) secondary terminal voltage on F.L. at unity p.f., 0-8 lagging, 0-8 leading. [(i) 97-86 % (ii) 1980 V; 1950 V; 2018 VI

01 A 10 kVA, 500/2000 V, single-phase, 50 Hz transformer gave the following test results : 500 V at normal frequency applied to primary; power absorbed 120 W O.C. test S.C. test : 15 V at normal frequency applied to primary circulated full-load current in the short-circuited secondary; power absorbed 100 W Calculate (i) efficiency at full-load at unity p.f. (ii) secondary terminal voltage on F.L. at unity p.f., 0-8 lagging, 0-8 leading. [(i) 97-86 % (ii) 1980 V; 1950 V; 2018 VI

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

Chapter14: Power Distribution

Section: Chapter Questions

Problem 14.8P

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