Transformers The open circuit test on a transformer gives _______ Friction losses Total losses Iron losses Copper losses Friction losses Total losses Iron losses Copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be hot because primary will carry heavy current cool as there is no secondary current none of above will happen hot because of heavy iron losses taking place in it due to high flux density hot because primary will carry heavy current cool as there is no secondary current none of above will happen hot because of heavy iron losses taking place in it due to high flux density ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following parts of a transformer is visible from outside? Primary winding Secondary winding Bushings Core Primary winding Secondary winding Bushings Core ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 30-40% Above 40% 3-5% 15-30% 30-40% Above 40% 3-5% 15-30% ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is one-fourth the primary current one-fourth the primary current and equal to the primary current four times the primary current equal to the primary current one-fourth the primary current one-fourth the primary current and equal to the primary current four times the primary current equal to the primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers An isolation transformer has primary to secondady turns ratio of 2:1 1:1 Can be any ratio 1:2 2:1 1:1 Can be any ratio 1:2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS