Transformers The maximum load that a power transformer can carry is limited by its voltage ratio temperature rise copper loss dielectric strength of oil voltage ratio temperature rise copper loss dielectric strength of oil ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Helps in transfer of energy Is negligible at full load Is minimised by interleaving the primary and secondary windings Produces mutually induced emf Helps in transfer of energy Is negligible at full load Is minimised by interleaving the primary and secondary windings Produces mutually induced emf ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum efficiency of a distribution transformer is at no load at 80% full load at 50% full load at full load at no load at 80% full load at 50% full load at full load ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer is smallest? 2kVA, 400 Hz 2kVA, 200 Hz 2kVA, 500 Hz 2kVA, 50 Hz 2kVA, 400 Hz 2kVA, 200 Hz 2kVA, 500 Hz 2kVA, 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 85% 75% 95 % 65% 85% 75% 95 % 65% ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine efficiency of the transformer magnetising current magnetising current and loss copper loss efficiency of the transformer magnetising current magnetising current and loss copper loss ANSWER DOWNLOAD EXAMIANS APP
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