Transformers The efficiency of a transformer, under heavy loads, is comparatively low because iron loss is increased considerably copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large secondary output is much less as compared to primary input iron loss is increased considerably copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large secondary output is much less as compared to primary input ANSWER DOWNLOAD EXAMIANS APP
Transformers Leakage flux in a transformer occurs because 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 Iron core has high permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Breather Conservator Horn gaps Thermal overload relays Breather Conservator Horn gaps Thermal overload relays ANSWER DOWNLOAD EXAMIANS APP
Transformers The power efficiency of a lightning transformer is always ______its all day efficiency. Less than Equal to Higher than None of the listed here Less than Equal to Higher than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its copper loss temperature rise voltage ratio dielectric strength of oil copper loss temperature rise voltage ratio dielectric strength of oil ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will work on None of the listed here Ac only AC as well as DC Dc only None of the listed here Ac only AC as well as DC Dc only ANSWER DOWNLOAD EXAMIANS APP
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