Transformer Rating is expressed in | Electrical Transformer MCQ#3

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Transformer rating is expressed in:

  1. amps
  2. kilovolt-amps (kVA)
  3. volts
  4. watts

Correct answer: 2. kVA or kilovolt-amps

Explanation – Why Transformer Rating is expressed in kVA

The actual power factor is determined by the load. The kVA is the unit of apparent power which is defined as the product of voltage and the current flowing through the load. The kVA is the actual power that appears to be supplied (ignoring the phase angle).

More MCQ on transformers:

  1. The No-load current of Transformer is usually what percent of its full load
  2. What will happen if DC is supplied to the transformer

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