Transformers Distribution transformers are generally designed for maximum efficiency around 25% load 50% load Zero load 90% load 25% load 50% load Zero load 90% load ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformer to determine All day efficiency Stray losses None of the listed here Temperature All day efficiency Stray losses None of the listed here Temperature 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 120 V 240 V 12 V 2,400 V 120 V 240 V 12 V 2,400 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural air cooling is generally restricted for transformers up to 15 MVA 50 MVA 5 MVA 1.5 MVA 15 MVA 50 MVA 5 MVA 1.5 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers For the parallel operation of single phase transformers it is necessary that they should have same kVA rating same efficiency same polarity same number of turns on the secondary side. same kVA rating same efficiency same polarity same number of turns on the secondary side. ANSWER DOWNLOAD EXAMIANS APP
Transformers The secondary of a current transformer is always short-circuited under operating conditions because it is safe to human beings None of these protects the primary circuit avoids core saturation and high voltage induction is safe to human beings None of these protects the primary circuit avoids core saturation and high voltage induction ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS