Transformers The efficiency of a transformer will be maximum when ______ Leakage reactance of the two winding Copper loss is equal to constant loss None of the listed here Resistance of the two winding are equal Leakage reactance of the two winding Copper loss is equal to constant loss None of the listed here Resistance of the two winding are equal ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because 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 voltage drop both in primary and secondary becomes large copper loss becomes high in proportion to the output ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will work on Dc only AC as well as DC Ac only None of the listed here Dc only AC as well as DC Ac only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following protection is normally not provided on small distribution transformers? Buchholz relay All of these Overcurrent protection Overfluxing protection Buchholz relay All of these Overcurrent protection Overfluxing protection ANSWER DOWNLOAD EXAMIANS APP
Transformers The temperature rise of transformer is directly proportional to _______ Reactive power Leakage reactance None of the listed here Apparent power Reactive power Leakage reactance None of the listed here Apparent power ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will have zero efficiency at No load Full load None of the listed here Half full load No load Full load None of the listed here Half full load ANSWER DOWNLOAD EXAMIANS APP
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