Transformers Distribution transformers are generally designed for maximum efficiency around 90% load 25% load Zero load 50% load 90% load 25% load Zero load 50% load ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around 10% overload no-load near full-load half-load 10% overload no-load near full-load half-load ANSWER DOWNLOAD EXAMIANS APP
Transformers When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is 2,400 V 12 V 120 V 240 V 2,400 V 12 V 120 V 240 V ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure total loss insulation resistance copper loss core loss total loss insulation resistance copper loss core loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformers to determine temperature all-day efficiency stray losses None of these temperature all-day efficiency stray losses None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The output current corresponding to the maximum efficiency for a transformer having core loss of 200 W and equivalent resistance referred to secondary of 0.5 Ω is 5 A 15 A 20 A 10 A 5 A 15 A 20 A 10 A ANSWER DOWNLOAD EXAMIANS APP
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