A 10KVA,2300/230V transformer is to be tested to detrmine its excitation branch components ,its series impedence and its voltage regulations.The following test data have been taken from the primary side of the transformer. Open circuit test: Voc=2300v Ioc=0.20A Poc=40w Short circuit test: Vsc=48v Isc= 5.0A Psc=180w The data have been taken by using the connection of open circuit test and short circuit test. a)Calculate the full load voltage regulation at 0.8 lagging power factor and 0.8 leading power factor. b)What is the efficiency of the transformer at full load with a power factor of 0.8 lagging.

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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.