Draw the per-unit equivalent circuit

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Reference no: EM131142127

Three single-phase, two-winding transformers, each rated 450 MVA, 20 kV/288.7 kV, with leakage reactance X_eq = 0.10 per unit, are connected to form a three-phase bank. The high-voltage windings are connected in Y with a solidly grounded neutral. Draw the per-unit equivalent circuit if the low-voltage windings are connected

(a) in Δ with American standard phase shift,

(b) in Y with an open neutral. Use the transformer ratings as base quantities. Winding resistances and exciting current are neglected.

Reference no: EM131142127

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