Transformers Harmonics in transformer result in magnetic interference with communication circuits increased I2R losses increased core losses All of the listed here magnetic interference with communication circuits increased I2R losses increased core losses All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of colling a power transformer is Air blast cooling Natural air cooling Any of the listed here Oil cooling Air blast cooling Natural air cooling Any of the listed here Oil cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers The main reason for generation of harmonics in a transformer could be poor insulation saturation of core fluctuating load mechanical vibrations poor insulation saturation of core fluctuating load mechanical vibrations ANSWER DOWNLOAD EXAMIANS APP
Transformers The hum in a transformer is mainly attributed to mechanical vibrations magnetostriction load changes oil in the transformer mechanical vibrations magnetostriction load changes oil in the transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding in a transformer has more number of turns? Low voltage winding Secondary winding Primary winding High voltage winding Low voltage winding Secondary winding Primary winding High voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 50 per cent 100 per cent 98 per cent 25 per cent 50 per cent 100 per cent 98 per cent 25 per cent ANSWER DOWNLOAD EXAMIANS APP
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