Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of the transformer equivalent circuit are: RI = 0.5 2, R2= 0.005 2, X1 = 0.5 2, X2=0.005 . The excitation impedance parameters referred to LVS are: Rc 500 n and XM = 50 2. The transformer is fully-loaded at 0.8 PF lagging and the load voltage is maintained at 200 V. Using the approximate L-equivalent circuit, the input power factor of the system: 81.7 % lagging zenor zeno 75.08 % lagging 80 % lagging 78.16 % lagging

Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of the transformer equivalent circuit are: RI = 0.5 2, R2= 0.005 2, X1 = 0.5 2, X2=0.005 . The excitation impedance parameters referred to LVS are: Rc 500 n and XM = 50 2. The transformer is fully-loaded at 0.8 PF lagging and the load voltage is maintained at 200 V. Using the approximate L-equivalent circuit, the input power factor of the system: 81.7 % lagging zenor zeno 75.08 % lagging 80 % lagging 78.16 % 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 3.10P: A single-phase step-down transformer is rated 13MVA,66kV/11.5kV. With the 11.5 kV winding...

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