Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Air cooled None of the listed here Oil cooled Water cooled Air cooled None of the listed here Oil cooled Water cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers Open circuit test on transformers is conducted to determine eddy current losses core losses copper losses hysteresis losses eddy current losses core losses copper losses hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be Ns s.N. (l-s)Ns (Ns-l)s Ns s.N. (l-s)Ns (Ns-l)s ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 13 Ω 78 Ω 1.3 Ω 7.8 Ω 13 Ω 78 Ω 1.3 Ω 7.8 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers In the short circuit test on a transformer, we generally short circuit ______ High voltage winding Either low or high voltage winding Low voltage winding None of the listed here High voltage winding Either low or high voltage winding Low voltage winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 100 per cent 50 per cent 98 per cent 25 per cent 100 per cent 50 per cent 98 per cent 25 per cent ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS