Transformers An isolation transformer has primary to secondady turns ratio of 1:2 Can be any ratio 1:1 2:1 1:2 Can be any ratio 1:1 2:1 ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers upto a rating of 500 kVA 250 kVA 3000 kVA 1000 kVA 500 kVA 250 kVA 3000 kVA 1000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be switched fused shorted open switched fused shorted open ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its voltage ratio temperature rise copper loss dielectric strength of oil voltage ratio temperature rise copper loss dielectric strength of oil ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Star/Delta Delta/Star Delta/Delta Star/Star Star/Delta Delta/Star Delta/Delta Star/Star ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of primary turns to secondary turns secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. secondary current to primary current primary turns to secondary turns secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. secondary current to primary current ANSWER DOWNLOAD EXAMIANS APP
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