Q1) A 1.5 KVA, 220/110V, single-phase transformer has the following test data: Open circuit test: Voc= 110 V, loc=0.4 A, Poc= 25 W Short circuit test: Vsc= 16.5 V, Isc=6.8 A, Psc= 40W %3D %3D If the transformer supplies 80% of its rated load at 0.866 lagging power factor, (use approximate equivalent circuit), Calculate: The approximate equivalent circuit referred to H.V.S. Pin(s) and Pout The transformer efficiency. Voltage Regulations. a) b)

Q1) A 1.5 KVA, 220/110V, single-phase transformer has the following test data: Open circuit test: Voc= 110 V, loc=0.4 A, Poc= 25 W Short circuit test: Vsc= 16.5 V, Isc=6.8 A, Psc= 40W %3D %3D If the transformer supplies 80% of its rated load at 0.866 lagging power factor, (use approximate equivalent circuit), Calculate: The approximate equivalent circuit referred to H.V.S. Pin(s) and Pout The transformer efficiency. Voltage Regulations. a) b)

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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