Transformers A no-load test is performed on a transformer to determine efficiency copper loss magnetising current and loss magnetising current core loss efficiency copper loss magnetising current and loss magnetising current core loss ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Magnetising current is greatly increased Eddy current is increased Reluctance of magnetic path is decreased Hysteresis loss is decreased Magnetising current is greatly increased Eddy current is increased Reluctance of magnetic path is decreased Hysteresis loss is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is 5 25 0.4 0.2 5 25 0.4 0.2 ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a part of transformer installation? Breather Buchholz relay Exciter Conservator Breather Buchholz relay Exciter Conservator ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 2 mH 2 μH 8 μH 4 μH 2 mH 2 μH 8 μH 4 μH ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum efficiency of a distribution transformer is at 50% full load at 80% full load at full load at no load at 50% full load at 80% full load at full load at no load ANSWER DOWNLOAD EXAMIANS APP
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