Transformers The no load primary current is about ______of full load primary current. 15-30% 30-40% 3-5% Above 40% 15-30% 30-40% 3-5% Above 40% ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is equal to the primary current one-fourth the primary current four times the primary current one-fourth the primary current and equal to the primary current equal to the primary current one-fourth the primary current four times the primary current one-fourth the primary current and equal to the primary current 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 0.4 0.2 5 25 0.4 0.2 5 25 ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 100 W 400 W 200 W None of the listed here 100 W 400 W 200 W None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High silicon content High permeability All of the listed here Low hysteresis loss High silicon content High permeability All of the listed here Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Thermal overload relays Horn gaps Conservator Breather Thermal overload relays Horn gaps Conservator Breather ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS