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adhyartha
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Join Date: Nov 2007
Location: Indonesia
Posts: 29

Deviation of Class of Metering

01/25/2009 10:18 AM

Dear all,

Suppose I have a feeder with two energy metering of different classes, class O.5 and Class 1.

How much the deviation would be for, let's say 1000 Wh, between those two?

Thank you.

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nick name
Guru

Join Date: Mar 2007
Location: City of Light
Posts: 3943
Good Answers: 183
#1

Re: Deviation of Class of Metering

01/25/2009 5:53 PM

Between zero and 1.5 % or even more.
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viral.vadgama
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Join Date: Nov 2008
Location: Gujarat, India
Posts: 3
#2

Re: Deviation of Class of Metering

01/26/2009 12:36 AM

The deviation would be + or - 1.5 % i.e + or - 15 units (kwhr)

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adhyartha
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Join Date: Nov 2007
Location: Indonesia
Posts: 29
#3

Re: Deviation of Class of Metering

01/26/2009 1:04 AM

I wonder how do you get the figure.

Do you know the link of article for error calculation of a CT regarding the load current, or even the formula?

Thanks

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