Consider a bank of three single-phase two-winding transformers whose high-voltage terminals are connected to a three-phase, (13.8-mathrm{kV})

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Consider a bank of three single-phase two-winding transformers whose high-voltage terminals are connected to a three-phase, \(13.8-\mathrm{kV}\) feeder. The low-voltage terminals are connected to a three-phase substation load rated 2.0 MVA and \(2.5 \mathrm{kV}\). Determine the required voltage, current, and MVA ratings of both windings of each transformer, when the high-voltage/lowvoltage windings are connected

(a) \(\mathrm{Y}-\Delta\),

(b) \(\Delta-\mathrm{Y}\),

(c) \(\mathrm{Y}-\mathrm{Y}\), and

(d) \(\Delta-\Delta\).

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Power System Analysis And Design

ISBN: 9781305632134

6th Edition

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

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