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A 200/400 V, 20 kVA, 50 Hz single-phase transformer has, at full-load, a copper loss of 120 W. If it has an efficiency of 98% at full-load, determine the iron losses.
  • a)
    180 W
  • b)
    240 W
  • c)
    280 W
  • d)
    320 W
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A 200/400 V, 20 kVA, 50 Hz single-phase transformer has, at full-load,...
Transformer Efficiency η 
= 1- (Copper Loss + Iron Loss)/Input kVA
0.98  = 1- {( 120 + Pi)/(20x1000)}
0.98 x 20000 = 20000 - 120 -Pi
Pi = 20000 - 19600-120
= 280 W
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A 200/400 V, 20 kVA, 50 Hz single-phase transformer has, at full-load, a copper loss of 120 W. If it has an efficiency of 98% at full-load, determine the iron losses.a)180 Wb)240 Wc)280 Wd)320 WCorrect answer is option 'C'. Can you explain this answer?
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A 200/400 V, 20 kVA, 50 Hz single-phase transformer has, at full-load, a copper loss of 120 W. If it has an efficiency of 98% at full-load, determine the iron losses.a)180 Wb)240 Wc)280 Wd)320 WCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about A 200/400 V, 20 kVA, 50 Hz single-phase transformer has, at full-load, a copper loss of 120 W. If it has an efficiency of 98% at full-load, determine the iron losses.a)180 Wb)240 Wc)280 Wd)320 WCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 200/400 V, 20 kVA, 50 Hz single-phase transformer has, at full-load, a copper loss of 120 W. If it has an efficiency of 98% at full-load, determine the iron losses.a)180 Wb)240 Wc)280 Wd)320 WCorrect answer is option 'C'. Can you explain this answer?.
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