Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Zoom Magnetostriction Hum Boo Zoom Magnetostriction Hum Boo ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary windings are wound on the top of each other in order to reduce ______ Iron losses Copper losses Winding resistance Leakage reactance Iron losses Copper losses Winding resistance Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers The power transformer is a constant Main flux device Voltage device Current device Power device Main flux device Voltage device Current device Power device ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 78 Ω 13 Ω 1.3 Ω 7.8 Ω 78 Ω 13 Ω 1.3 Ω 7.8 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 65% 50% 95% 80% 65% 50% 95% 80% ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following protection is normally not provided on small distribution transformers? Overcurrent protection Overfluxing protection All of these Buchholz relay Overcurrent protection Overfluxing protection All of these Buchholz relay ANSWER DOWNLOAD EXAMIANS APP