Transformers Leakage flux in a transformer occurs because Iron core has high permeability Air is not a good magnetic insulator Applied voltage is sinusoidal Transformer is not an efficient device Iron core has high permeability Air is not a good magnetic insulator Applied voltage is sinusoidal Transformer is not an efficient device ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Breather Conservator Thermal overload relays Horn gaps Breather Conservator Thermal overload relays Horn gaps ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiencies of transformers compared with that of electric motors of the same power are much higher somewhat smaller about the same much smaller much higher somewhat smaller about the same much smaller ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Iron losses Leakage reactance Eddy current loss Copper loss Iron losses Leakage reactance Eddy current loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers We can find _______of the transformer with open circuit test. Copper losses Total equivalent leakage reactance Total equivalent resistance Turn ratio Copper losses Total equivalent leakage reactance Total equivalent resistance Turn ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers Short circuit test of a transformer helps us to find its None of the listed here Cu loss at no load Full load cu loss Iron loss None of the listed here Cu loss at no load Full load cu loss Iron loss ANSWER DOWNLOAD EXAMIANS APP
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