Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of less than 15 A 15 A more than 15 A None of these less than 15 A 15 A more than 15 A None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine core loss magnetising current magnetising current and loss efficiency copper loss core loss magnetising current magnetising current and loss efficiency copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural air cooling is generally restricted for transformers up to 5 MVA 15 MVA 1.5 MVA 50 MVA 5 MVA 15 MVA 1.5 MVA 50 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers Two things which are same for primary and secondary of transformer are ______ Currents and induced voltages Resistance and leakage reactances Ampere turns and voltage per turns None of the listed here Currents and induced voltages Resistance and leakage reactances Ampere turns and voltage per turns None of the listed here 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 10 A 15 A 5 A 20 A 10 A 15 A 5 A 20 A ANSWER DOWNLOAD EXAMIANS APP
Transformers The turns ratio required to match an 80 source to a 320 load is 4 80 2 20 4 80 2 20 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS