Question #2: A 2000/400 V, 100 kVA, 60 Hz step-down single-phase transformer has a primary and secondary resistances of 0.2 2 and 0.05 2 respectively, the corresponding leakage reactances being 0.3 2 and 0.01 2 respectively. 1. Calculate the equivalent resistance, reactance and impedance referred to the low-voltage (secondary) side. 2. Find the high (primary) voltage when the transformer is supplying full-load current at rated secondary voltage at 0.8 power factor lagging. 3. Draw the phasor diagram showing your answer in 2. & +1 V & Transformer my roo V₂ I at 0.80 pF, lag Load

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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.