Transformers The maximum load that a power transformer can carry is limited by its dielectric strength of oil copper loss temperature rise voltage ratio dielectric strength of oil copper loss temperature rise voltage ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following insulating materials can withstand the highest temperature safely? Mica Glass fibre Asbestos Cellulose Mica Glass fibre Asbestos Cellulose ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine copper loss magnetising current and loss magnetising current efficiency of the transformer copper loss magnetising current and loss magnetising current efficiency of the transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load ratio of a 50 Hz single phase transformer is 6000/250 V. The maximum flux in the core is 0.06 Wb. What is the number of primary turns? 450 900 350 210 450 900 350 210 ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Supply frequency Power factor of load Both power factor and load current Load current Supply frequency Power factor of load Both power factor and load current Load current ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following protection is normally not provided on small distribution transformers? Overcurrent protection Overfluxing protection All of these Buchholz relay Overcurrent protection Overfluxing protection All of these Buchholz relay ANSWER DOWNLOAD EXAMIANS APP
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