Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be s.N. (Ns-l)s (l-s)Ns Ns s.N. (Ns-l)s (l-s)Ns Ns ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a part of transformer installation? Buchholz relay Exciter Conservator Breather Buchholz relay Exciter Conservator Breather ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ None of the listed here Decreases copper losses Cause voltage drop in the windings Increase copper losses None of the listed here Decreases copper losses Cause voltage drop in the windings Increase copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? Low hysteresis loss Mechanical strength High thermal conductivity High permeability Low hysteresis loss Mechanical strength High thermal conductivity High permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Leakage reactance Iron losses Eddy current loss Copper loss Leakage reactance Iron losses Eddy current loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 15-30% 30-40% 3-5% Above 40% 15-30% 30-40% 3-5% Above 40% ANSWER DOWNLOAD EXAMIANS APP
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