A Three-phase transformer is rated 400 MVA, and 220/22 (Wye-Delta) kV. The Wye equivalent short-circuit impedance...
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A Three-phase transformer is rated 400 MVA, and 220/22 (Wye-Delta) kV. The Wye equivalent short-circuit impedance measured on the low-voltage side of the transformer is 0.121 2. Determine the per unit impedance of the transformer and the per unit value to represent this transformer in a system whose base values on the high-voltage side is 100 MVA, 230 kV. A Three-phase transformer is rated 400 MVA, and 220/22 (Wye-Delta) kV. The Wye equivalent short-circuit impedance measured on the low-voltage side of the transformer is 0.121 2. Determine the per unit impedance of the transformer and the per unit value to represent this transformer in a system whose base values on the high-voltage side is 100 MVA, 230 kV.
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