A three-phase Y-A transformer is rated at 225 kV:24kV, 400 MVA and has a series reactance of 11.7 2 as referred to its high-voltage terminals. The transformer is supplying a load of 325 MVA, with 0.93 power factor lagging at a voltage of 24 kV (line-to-line) on its low voltage side. It is supplied from a feeder whose impedance is 0.11 + j2.2 2 connected to its high-voltage terminals. For these conditions, calculate: a) Line-to-line voltage at the high-voltage terminal of the transformer b) Line-to-line voltage at the sending end of the feeder

A three-phase Y-A transformer is rated at 225 kV:24kV, 400 MVA and has a series reactance of 11.7 2 as referred to its high-voltage terminals. The transformer is supplying a load of 325 MVA, with 0.93 power factor lagging at a voltage of 24 kV (line-to-line) on its low voltage side. It is supplied from a feeder whose impedance is 0.11 + j2.2 2 connected to its high-voltage terminals. For these conditions, calculate: a) Line-to-line voltage at the high-voltage terminal of the transformer b) Line-to-line voltage at the sending end of the feeder

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 3.63P: A 23/230-kV step-up transformer feeds a three-phase transmission line, which in turn supplies a...

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