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A single-phase, 50 kVA, 2200 V/400 V, 50 Hz transformer is tested for open and short-circuit test with below shown inferences:Open circuit test : hv open circuited V = 400 V, I = 1.2 A, W = 240 WShort circuit test : Iv side short circuited V= 100 V, I = rated current, W = 280 WThe value of half full load efficiency of transformer operating at unity power factor will be ____%(upto 2 decimal place). 98.78 |
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Answer» A single-phase, 50 kVA, 2200 V/400 V, 50 Hz transformer is tested for open and short-circuit test with below shown inferences: Open circuit test : hv open circuited V = 400 V, I = 1.2 A, W = 240 W Short circuit test : Iv side short circuited V= 100 V, I = rated current, W = 280 W The value of half full load efficiency of transformer operating at unity power factor will be ____% (upto 2 decimal place).
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