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 200 W 400 W 100 W 50 W 200 W 400 W 100 W 50 W ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be open switched shorted fused open switched shorted fused ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its None of the listed here Current efficiency Energy efficiency Power efficiency None of the listed here Current efficiency Energy efficiency Power efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers The main reason for generation of harmonics in a transformer could be saturation of core mechanical vibrations fluctuating load poor insulation saturation of core mechanical vibrations fluctuating load poor insulation ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. Increase the wight Reduce core loss Provide tight magnetic coupling None of the listed here Increase the wight Reduce core loss Provide tight magnetic coupling None of the listed here 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? 210 350 450 900 210 350 450 900 ANSWER DOWNLOAD EXAMIANS APP
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