Transformers Losses which occur in rotating electric machines and do not occur in trans formers are magnetic losses friction and windage losses hysteresis and eddy current losses copper losses magnetic losses friction and windage losses hysteresis and eddy current losses copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Potential transformer Auto transformer Current transformer Power transformer Potential transformer Auto transformer Current transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers Noise level test in a transformer is a special test None of these routine test type test special test None of these routine test type test ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High permeability High silicon content All of the listed here Low hysteresis loss High permeability High silicon content All of the listed here Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ Water cooled None of the listed here Oil cooled Natural air cooled Water cooled None of the listed here Oil cooled Natural air cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 400 W 100 W None of the listed here 200 W 400 W 100 W None of the listed here 200 W ANSWER DOWNLOAD EXAMIANS APP
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