(a) A 5 MVA 230/10.5-kV single-phase power transformer has a per-unit resistance of 1.5% and a per-unit reactance of 6% (data taken from the transformer's nameplate). The transformer approximate equivalent circuit is given in Figure Q1 (a). The open-circuit test performed on the low-voltage side of the transformer yielded the following data: Voc = 120 kV loc = 10 A Poc = 60 kW %3D %3D %3D Refer to the low-voltage side of the transformer and calculate: (i) The value of Req and Xeq. (ii) The value of Rc and Xm.

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Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.