Transformers Losses which occur in rotating electric machines and do not occur in trans formers are hysteresis and eddy current losses copper losses magnetic losses friction and windage losses hysteresis and eddy current losses copper losses magnetic losses friction and windage losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural air cooling is generally restricted for transformers up to 15 MVA 1.5 MVA 50 MVA 5 MVA 15 MVA 1.5 MVA 50 MVA 5 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Oil cooled Water cooled None of the listed here Air cooled Oil cooled Water cooled None of the listed here Air cooled 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 protects the primary circuit None of these avoids core saturation and high voltage induction is safe to human beings protects the primary circuit None of these avoids core saturation and high voltage induction ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its dielectric strength of oil temperature rise voltage ratio copper loss dielectric strength of oil temperature rise voltage ratio copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The power efficiency of a lightning transformer is always ______its all day efficiency. Less than Higher than Equal to None of the listed here Less than Higher than Equal to None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS