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500 kVA Transformer: Ratings, Efficiency Curve and Regulation Phasors

A 500 kVA, 34.5 kV to 0.48 kV transformer with its ratings (5.75% impedance, 1.10 kW no-load loss, 6.20 kW load loss), efficiency-versus-load curves at three power factors, a peak efficiency at 42.1% load, and a regulation phasor diagram.

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