Transformers The temperature rise of transformer is directly proportional to _______ Apparent power Reactive power Leakage reactance None of the listed here Apparent power Reactive power Leakage reactance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The permissible flux density in case of cold rolled grain oriented steel is around 1.7 Wb/m² 2.7 Wb/m² 4.7 Wb/m² 3.7 Wb/m² 1.7 Wb/m² 2.7 Wb/m² 4.7 Wb/m² 3.7 Wb/m² ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ Water cooled Oil cooled None of the listed here Natural air cooled Water cooled Oil cooled None of the listed here Natural air cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers up to a rating of 500 kVA 3000 kVA 250 kVA 1000 kVA 500 kVA 3000 kVA 250 kVA 1000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Is minimised by interleaving the primary and secondary windings Helps in transfer of energy Is negligible at full load Produces mutually induced emf Is minimised by interleaving the primary and secondary windings Helps in transfer of energy Is negligible at full load Produces mutually induced emf ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Conservator Thermal overload relays Horn gaps Breather Conservator Thermal overload relays Horn gaps Breather ANSWER DOWNLOAD EXAMIANS APP
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