Transformers The maximum load that a power transformer can carry is limited by its copper loss voltage ratio temperature rise dielectric strength of oil copper loss voltage ratio temperature rise dielectric strength of oil ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. None of the listed here 200 W 100 W 400 W None of the listed here 200 W 100 W 400 W ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is one-fourth the primary current and equal to the primary current four times the primary current equal to the primary current one-fourth the primary current one-fourth the primary current and equal to the primary current four times the primary current equal to the primary current one-fourth the primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers The core type transformer is generally suitable for ______ High voltage and high output High voltage and small output None of the listed here Low voltage and high output High voltage and high output High voltage and small output None of the listed here Low voltage and high output 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 copper losses magnetic losses friction and windage losses hysteresis and eddy current losses copper losses magnetic losses friction and windage losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ None of the listed here Cause voltage drop in the windings Decreases copper losses Increase copper losses None of the listed here Cause voltage drop in the windings Decreases copper losses Increase copper losses ANSWER DOWNLOAD EXAMIANS APP
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