Find the percentage regulation and power efficiency

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Reference no: EM131025905

A 60-Hz 20-kVA 8000/240-V-rms transformer has the following equivalent-circuit parameters:

Primary resistance R1 15Ω
Secondary resistance R2 0.02Ω
Primary leakage reactance X1 = ωL1 120Ω
Secondary leakage reactance X2 =ω L2 0.15Ω
Magnetizing reactance Xm = ωLm 30kΩ
Core-loss resistance Rc 200kΩ

Find the percentage regulation and power efficiency for the transformer for a rated load having a lagging power factor of 0.8.

Reference no: EM131025905

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