A transformer rated 1-kVA, 240/120, 60 Hz. Because of an emergency, the transformer has to be used on a 50 Hz system. If the flux density in the transformer core is to be kept the same at 60 Hz and 240 volts, what is the volt- ampere rating at 50 Hz? A. 0.833 kVA. B. 1.211 KVA C. 0.766 KVA D. 0.899 KVA

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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.