Transformers In a certain transformer, the input power to the primary is 120 W. If 8.5 W are lost to the winding resistance, what is the output power to the load, neglecting any other issues? 0 W 1,020 W 14.1 W 111.5 W 0 W 1,020 W 14.1 W 111.5 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are hysteresis and eddy current losses friction and windage losses copper losses magnetic losses hysteresis and eddy current losses friction and windage losses copper losses magnetic losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural air cooling is generally restricted for transformers up to 5 MVA 1.5 MVA 15 MVA 50 MVA 5 MVA 1.5 MVA 15 MVA 50 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Hysteresis loss is decreased Eddy current is increased Reluctance of magnetic path is decreased Magnetising current is greatly increased Hysteresis loss is decreased Eddy current is increased Reluctance of magnetic path is decreased Magnetising current is greatly increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ Cause voltage drop in the windings Increase copper losses None of the listed here Decreases copper losses Cause voltage drop in the windings Increase copper losses None of the listed here Decreases copper losses ANSWER DOWNLOAD EXAMIANS APP
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 400 W 100 W 200 W 50 W 400 W 100 W 200 W 50 W ANSWER DOWNLOAD EXAMIANS APP
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