Transformers A transformer has 200 W as iron loss at full load. The iron loss at full load. The iron loss at half full load will be 400 W 50 W 200 W 100 W 400 W 50 W 200 W 100 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Current transformer Power transformer Potential transformer Auto transformer Current transformer Power transformer Potential transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine efficiency magnetising current core loss magnetising current and loss copper loss efficiency magnetising current core loss magnetising current and loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 95 % 85% 75% 65% 95 % 85% 75% 65% ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be open shorted switched fused open shorted switched fused ANSWER DOWNLOAD EXAMIANS APP
Transformers Material used for construction of transformer core is usually Silicon steel Aluminium Wood Copper Silicon steel Aluminium Wood Copper ANSWER DOWNLOAD EXAMIANS APP
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