Question
Download Solution PDFAn alternator is supplying a load of 300 kW at 0.6 p.f. lagging. If the power factor is raised to unity, how many more kilowatts can alternator supply for the same kVA loading?
This question was previously asked in
SSC JE EE Previous Year Paper 18 (Held On: 31 January 2016)
Answer (Detailed Solution Below)
Option 3 : 200 kW
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Detailed Solution
Download Solution PDFP = S cos ɸ
P = 300 kW, cos ɸ = 0.6
S = 300/0.6 = 500 kVA
Now, cos ɸ = 1, S = 500 kVA
P = 500 × 1 = 500 kW
More kilo watts can alternator supply for the same kVA loading = 500 – 300 = 200 kW
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