Discussion
A meter is used with a current transformer of ratio 200/5 and a potential transformer of 11000/110. Its register readings must be multiplied by
Answer: A
The current ratio is forty and the voltage ratio one hundred, so the energy indicated is a four-thousandth of the true energy. Such a meter is often supplied with its register already geared to allow for the transformers, in which case no multiplier is applied.
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