A 101 MVA 11kV/220 kV single-phase power transformer has a per-unit resistance of 1.1 percent and a per-unit reactance of 4.8 percent (data taken from the transformer's nameplate). The core resistance is 259 per unit and the magnetizing impedance is j82 per unit. Determine Rc referred to the high-voltage side of the transformer.

A 101 MVA 11kV/220 kV single-phase power transformer has a per-unit resistance of 1.1 percent and a per-unit reactance of 4.8 percent (data taken from the transformer's nameplate). The core resistance is 259 per unit and the magnetizing impedance is j82 per unit. Determine Rc referred to the high-voltage side of the transformer.

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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