Transformers Which of the following property is not necessarily desirable in the material for transformer core? High thermal conductivity Low hysteresis loss High permeability Mechanical strength High thermal conductivity Low hysteresis loss High permeability Mechanical strength ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 2 mH 4 μH 8 μH 2 μH 2 mH 4 μH 8 μH 2 μH ANSWER DOWNLOAD EXAMIANS APP
Transformers The temperature rise of transformer is directly proportional to _______ Leakage reactance Reactive power Apparent power None of the listed here Leakage reactance Reactive power Apparent power None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a part of transformer installation? Conservator Breather Buchholz relay Exciter Conservator Breather Buchholz relay Exciter ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are hysteresis and eddy current losses friction and windage losses magnetic losses copper losses hysteresis and eddy current losses friction and windage losses magnetic losses copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be (l-s)Ns Ns s.N. (Ns-l)s (l-s)Ns Ns s.N. (Ns-l)s ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS