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Participant

Join Date: Nov 2009
Posts: 1

Energy Meters: ISF Value for CT

12/05/2009 3:35 AM

dear can anybody help me if we have not maintained the ISF value less than 5, what problem will occurs to energy meter.

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Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#1

Re: ISF VALUE FOR CT

12/05/2009 4:12 AM

If the short time withstand rating of the energy meter is less than 5 times its rated current, then your meter might damage.

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