Determine the CT ratios for differential protection of a three-phase, (Delta-Y) connected, 15-MVA, 33:11 kV transformer, such

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Determine the CT ratios for differential protection of a three-phase, \(\Delta-Y\) connected, 15-MVA, 33:11 kV transformer, such that the circulating current in the transformer \(\Delta\) does not exceed \(5 \mathrm{~A}\).

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Power System Analysis And Design

ISBN: 9781111425777

5th Edition

Authors: J Duncan Glover, Mulukutla S Sarma, Thomas Overbye

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