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 400 W 200 W 100 W None of the listed here 400 W 200 W 100 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer could either be a low voltage or high voltage winding None of these is always a high voltage winding is always a low voltage winding could either be a low voltage or high voltage winding None of these is always a high voltage winding is always a low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 75% 85% 95 % 65% 75% 85% 95 % 65% ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ None of the listed here Core losses will be excessive Primary reactance is too much increased Primary will draw large power None of the listed here Core losses will be excessive Primary reactance is too much increased Primary will draw large power ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 25 per cent 50 per cent 100 per cent 98 per cent 25 per cent 50 per cent 100 per cent 98 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of cooling a power transformer is natural air cooling oil cooling Any of these air blast cooling natural air cooling oil cooling Any of these air blast cooling ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS