Two single-phase transformers work in parallel on a load of 750 A at 0.8 p.f. lagging. Determine secondary voltage and the output and power factor of each transformer. Test data are: Open circuit: 11,000/3,300 V for each transformer Short circuit: with h.t. winding short-circuit Transformer A: secondary input 200 V, 400 A, 15 kW Transformer B: secondary input 100 V, 400 A, 20 kW

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7. Two single-phase transformers work in parallel on a load of 750 A at 0.8 p.f. lagging.
Determine secondary voltage and the output and power factor of each transformer. Test data
are:
Open circuit: 11,000/3,300 V for each transformer
Short circuit: with h.t. winding short-circuit
Transformer A: secondary input 200 V, 400 A, 15 kW
Transformer B: secondary input 100 V, 400 A, 20 kW
[3,190 V; A: 80 kVA, 0.65 lag; B: 1,615 kVA, 0.86 lag]
Transcribed Image Text:7. Two single-phase transformers work in parallel on a load of 750 A at 0.8 p.f. lagging. Determine secondary voltage and the output and power factor of each transformer. Test data are: Open circuit: 11,000/3,300 V for each transformer Short circuit: with h.t. winding short-circuit Transformer A: secondary input 200 V, 400 A, 15 kW Transformer B: secondary input 100 V, 400 A, 20 kW [3,190 V; A: 80 kVA, 0.65 lag; B: 1,615 kVA, 0.86 lag]
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