Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. None of the listed here 100 W 200 W 400 W None of the listed here 100 W 200 W 400 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Horn gaps Conservator Breather Thermal overload relays Horn gaps Conservator Breather Thermal overload relays ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ Oil cooled Water cooled None of the listed here Natural air cooled Oil cooled Water cooled None of the listed here Natural air cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is one-fourth the primary current and equal to the primary current one-fourth the primary current equal to the primary current four times the primary current one-fourth the primary current and equal to the primary current one-fourth the primary current equal to the primary current four times the primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Voltage Power Time period Frequency Voltage Power Time period Frequency ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine copper loss magnetising current and loss magnetising current efficiency core loss copper loss magnetising current and loss magnetising current efficiency core loss ANSWER DOWNLOAD EXAMIANS APP
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