Transformers In a transformer the energy is conveyed from primary to secondary by the flux None of these through air through cooling coil by the flux None of these through air through cooling coil ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 15-30% 30-40% 3-5% Above 40% 15-30% 30-40% 3-5% Above 40% ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Moisture Gases Odour Sludge Moisture Gases Odour Sludge ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer does not posses ______changing property. Power Impedance Voltage Current Power Impedance Voltage Current ANSWER DOWNLOAD EXAMIANS APP
Transformers Short circuit test of a transformer helps us to find its Full load cu loss None of the listed here Iron loss Cu loss at no load Full load cu loss None of the listed here Iron loss Cu loss at no load ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because voltage drop both in primary and secondary becomes large copper loss becomes high in proportion to the output secondary output is much less as compared to primary input iron loss is increased considerably voltage drop both in primary and secondary becomes large copper loss becomes high in proportion to the output secondary output is much less as compared to primary input iron loss is increased considerably ANSWER DOWNLOAD EXAMIANS APP
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