A 5 MVA 230/13.8 kV, single-phase transformer has a per-unit resistance of 1% and a per-unit reactance of 5%. The open-circuit test performed on the low voltage side of the transfromer yielded the following data: VOC=13.8 kV, IOC=21.1 A, and POC=90.8 kW.
(a) Find the equivalent circuit referred to the high voltage side of this transformer.
(b) If the transformer is operating at full-load and at 0.8 pf lagging, find the voltage regulation of the transformer at this operating condition.
A 5 MVA 230/13.8 kV, single-phase transformer has a per-unit resistance of 1% and a per-unit...
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