Transformers Natural oil cooling is used for transformers up to a rating of 500 kVA 1000 kVA 3000 kVA 250 kVA 500 kVA 1000 kVA 3000 kVA 250 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers A step up transformer increases Voltage Frequency Power Current Voltage Frequency Power Current 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 250 W 0 W 2.5 W 25 W 250 W 0 W 2.5 W ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ Increase copper losses Decreases copper losses None of the listed here Cause voltage drop in the windings Increase copper losses Decreases copper losses None of the listed here Cause voltage drop in the windings ANSWER DOWNLOAD EXAMIANS APP
Transformers A tap changer is used on a transformer for Adjustments in secondary voltage Adjustment in both primary and secondary Adjustment in primary voltage None of the listed here Adjustments in secondary voltage Adjustment in both primary and secondary Adjustment in primary voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Power transformer Potential transformer Auto transformer Current transformer Power transformer Potential transformer Auto transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
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