A 12 KVA, 440/220 V, 50 Hz single phase transformer has 275 secondary turns. he no load current of transformer is 2 A'at power factor 0.375 when connected to 220 V,50 Hz supply. The full load copper loss is 198.3 watt. Calculate i) Maximum value of flux in the core. Peu F.L ii) KVA supply at maximum efficiency iii) Maximum efficiency at 0.8 lagging p.f

A 12 KVA, 440/220 V, 50 Hz single phase transformer has 275 secondary turns. he no load current of transformer is 2 A'at power factor 0.375 when connected to 220 V,50 Hz supply. The full load copper loss is 198.3 watt. Calculate i) Maximum value of flux in the core. Peu F.L ii) KVA supply at maximum efficiency iii) Maximum efficiency at 0.8 lagging p.f

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 3.34P: Three single-phase, two-winding transformers, each rated 450MVA,20kV/288.7kV, with leakage reactance...

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