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what do you mean by mf of energy meter & its formula?
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Answer Posted / virendra
MF means the Multiplying factor.
Its nothing but the CT ration . as a big amount of the
current to be measured So direct Metering is not possible
hence CT operated meter is used
Formula :- if the CT ratio is 60/5 then metered reading
should be multiply by 12 which give the exact Power usage
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