Q2/ A 3 phase, 0.8MVA, 3.3kV, 50Hz, SG its armature winding star connected and its iron and mechanical losses are 20kW, having 0.502/phase armature resistance when a 150V is applied to the excitation winding 1-100A at UPF and I, 120A at 0.8 lagging power factor. Find the efficiency at both case

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Q2/ A 3 phase, 0.8MVA, 3.3kV, 50Hz, SG its armature winding
star connected and its iron and mechanical losses are 20kW,
having 0.502/phase armature resistance when a 150V is applied to
the excitation winding 1-100A at UPF and I, 120A at 0.8
lagging power factor. Find the efficiency at both case
Transcribed Image Text:Q2/ A 3 phase, 0.8MVA, 3.3kV, 50Hz, SG its armature winding star connected and its iron and mechanical losses are 20kW, having 0.502/phase armature resistance when a 150V is applied to the excitation winding 1-100A at UPF and I, 120A at 0.8 lagging power factor. Find the efficiency at both case
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