Transformers The dielectric strength of transformer oil is expected to be 33 kV lkV 100 kV 330 kV 33 kV lkV 100 kV 330 kV ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load ratio of a 50 Hz single phase transformer is 6000/250 V. The maximum flux in the core is 0.06 Wb. What is the number of primary turns? 350 900 210 450 350 900 210 450 ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which _______ Has no losses and leakage reactance Does not work Has same number of primary and secondary turns None of the listed here Has no losses and leakage reactance Does not work Has same number of primary and secondary turns None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Harmonics in transformer result in increased core losses increased I2R losses magnetic interference with communication circuits All of the listed here increased core losses increased I2R losses magnetic interference with communication circuits All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Power efficiency Energy efficiency None of the listed here Current efficiency Power efficiency Energy efficiency None of the listed here Current efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 200 W 400 W 100 W None of the listed here 200 W 400 W 100 W None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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