Transformers When secondary of a current transformer is open-circuited its iron core will be cool as there is no secondary current none of above will happen hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density cool as there is no secondary current none of above will happen hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 15-30% 3-5% Above 40% 30-40% 15-30% 3-5% Above 40% 30-40% ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High permeability High silicon content Low hysteresis loss All of the listed here High permeability High silicon content Low hysteresis loss All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ Both primary and secondary windings None of the listed here Primary winding only Secondary winding only Both primary and secondary windings None of the listed here Primary winding only Secondary winding only ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Hum Zoom Magnetostriction Boo Hum Zoom Magnetostriction Boo ANSWER DOWNLOAD EXAMIANS APP
Transformers Burden of a current transformer is usually expressed in Volts Kilowatt Volt amperes Amperes Volts Kilowatt Volt amperes Amperes ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS