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Transformer Specifications S = 100 kVA 4800 – 240 V 60 Hz Core Loss = 0.5%...

Transformer Specifications

S = 100 kVA

4800 – 240 V

60 Hz

Core Loss = 0.5%

Resistance = 1.5%

Reactance = 3.4%

It is operating at rated conditions with an 80% power factor.

a. Determine the efficiency at the rated load.

b. Determine the efficiency at 70% of the rated load and 80% power factor.

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