Transformers Efficiency of a power transformer is of the order of 25 per cent 98 per cent 50 per cent 100 per cent 25 per cent 98 per cent 50 per cent 100 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary windings are wound on the top of each other in order to reduce ______ Copper losses Winding resistance Leakage reactance Iron losses Copper losses Winding resistance Leakage reactance Iron losses ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine magnetising current and loss efficiency core loss copper loss magnetising current magnetising current and loss efficiency core loss copper loss magnetising current ANSWER DOWNLOAD EXAMIANS APP
Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 8 kVA 0.25 kVA 4 kVA 16 kVA 8 kVA 0.25 kVA 4 kVA 16 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is 0.2 0.4 25 5 0.2 0.4 25 5 ANSWER DOWNLOAD EXAMIANS APP
Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Power transformer Auto transformer Current transformer Voltage transformer Power transformer Auto transformer Current transformer Voltage transformer ANSWER DOWNLOAD EXAMIANS APP
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