A 72VA, 60Hz single-phase transformer has the equivalent circuit shown. (a) What is the no-load current if excited on the 120V side? (b) Estimate the losses in the transformer at full load with power factor 1.0. (c) Estimate the input voltage required for full load if the output voltage is 36V-rms and the output current lags the voltage by 25 degrees. (d) What is the voltage regulation? Ans:(b) 4.68W (c)V_p = 123 angle(0.65) V rms (d) 2.5%   Show me how each answer was found

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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.