Transformers The dielectric strength of transformer oil is expected to be lkV 33 kV 100 kV 330 kV lkV 33 kV 100 kV 330 kV 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 copper losses magnetic losses hysteresis and eddy current losses friction and windage losses copper losses magnetic losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Saving in winding material Eddy losses are totally eliminated Copper losses are negligible Hysteresis losses are reduced Saving in winding material Eddy losses are totally eliminated Copper losses are negligible Hysteresis losses are reduced ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer is always a low voltage winding could either be a low voltage or high voltage winding None of these is always a high voltage winding is always a low voltage winding could either be a low voltage or high voltage winding None of these is always a high voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers Negative voltage regulation is indicative that the load is capacitive only None of these inductive or resistive inductive only capacitive only None of these inductive or resistive inductive only ANSWER DOWNLOAD EXAMIANS APP