Q2- A 25 KVA, 2500/250 V, 50 Hz, single phase transformer gave the following reading: o.Test: 250V,4A, 150 W (H.V. side open) S.C. Test: 90 V, 10 A, 350 W (L.V. side shorted) Determine: i) The efficiency at half load, 0.8 lagging p.f. ii) The voltage regulation on full load, 0.8 lagging p.f. iii) ) The shunt branch parameters ( Rc, Xm)

Q2- A 25 KVA, 2500/250 V, 50 Hz, single phase transformer gave the following reading: o.Test: 250V,4A, 150 W (H.V. side open) S.C. Test: 90 V, 10 A, 350 W (L.V. side shorted) Determine: i) The efficiency at half load, 0.8 lagging p.f. ii) The voltage regulation on full load, 0.8 lagging p.f. iii) ) The shunt branch parameters ( Rc, Xm)

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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