If a transformer is switched on to a voltage more than the rated voltage
A)its power factor will deteriorate
B)its power factor will increase
C)its power factor will remain unaffected
D)its power factor will be zero

Question

Quizplus · Accepted Answer

When a transformer is switched on to a voltage higher than its rated voltage, the increased voltage leads to higher magnetizing current. This results in an increase in the reactive power component compared to the active power, which deteriorates the power factor.

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