Transformers The flux in the core of a single phase transformer is _____ Purely alternating one Purely rotating one Partly alternating and partly rotating None of the listed here Purely alternating one Purely rotating one Partly alternating and partly rotating None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers If 25 W of power are applied to the primary of an ideal transformer with a turns ratio of 10, the power delivered to the secondary load is 25 W 2.5 W 0 W 250 W 25 W 2.5 W 0 W 250 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following protection is normally not provided on small distribution transformers? Overfluxing protection All of these Overcurrent protection Buchholz relay Overfluxing protection All of these Overcurrent protection Buchholz relay ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural air cooling is generally restricted for transformers up to 5 MVA 15 MVA 50 MVA 1.5 MVA 5 MVA 15 MVA 50 MVA 1.5 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine efficiency of the transformer magnetising current and loss magnetising current copper loss efficiency of the transformer magnetising current and loss magnetising current copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The main reason for generation of harmonics in a transformer could be mechanical vibrations fluctuating load poor insulation saturation of core mechanical vibrations fluctuating load poor insulation saturation of core ANSWER DOWNLOAD EXAMIANS APP
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