A 150-kVA transformer has a core loss of 8 kW and a copper loss of 22 kW at full load. a. What is the kVA rating at the maximum efficiency of the transformer? b. Express the load current at maximum efficiency as a percent of the rated current. If the transformer operates at a power factor of 0.9 lagging, c. Determine the maximum efficiency and d. the full-load efficiency of the transformer.

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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.