Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Conservator Breather Thermal overload relays Horn gaps Conservator Breather Thermal overload relays Horn gaps ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Gases Moisture Odour Sludge Gases Moisture Odour Sludge 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 10 A 15 A 20 A 5 A 10 A 15 A 20 A ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are hysteresis and eddy current losses friction and windage losses copper losses magnetic losses hysteresis and eddy current losses friction and windage losses copper losses magnetic losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer gives _______ Copper losses Iron losses Total losses Friction losses Copper losses Iron losses Total losses Friction losses ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Oil cooled Air cooled None of the listed here Water cooled Oil cooled Air cooled None of the listed here Water cooled ANSWER DOWNLOAD EXAMIANS APP
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