Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Auto transformer Potential transformer Power transformer Current transformer Auto transformer Potential transformer Power transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The flux in the core of a single phase transformer is _____ Purely alternating one None of the listed here Partly alternating and partly rotating Purely rotating one Purely alternating one None of the listed here Partly alternating and partly rotating Purely rotating one ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers up to a rating of 3000 kVA 500 kVA 250 kVA 1000 kVA 3000 kVA 500 kVA 250 kVA 1000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because Uses electric coupling A static device Uses capacitive coupling Uses inductive coupling Uses electric coupling A static device Uses capacitive coupling Uses inductive coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers The temperature rise of transformer is directly proportional to _______ Reactive power Apparent power None of the listed here Leakage reactance Reactive power Apparent power None of the listed here Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer the energy is conveyed from primary to secondary through cooling coil None of these through air by the flux through cooling coil None of these through air by the flux ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS