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Help me design energy meter with ADE7756 and has measurement error of less than 1%

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snmeciut

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Dear

I want to implemented watt meter with ADE7756 with below 1% error in measurement of 220v instruments.

have you any suggestion?

Best rigards
 

Re: Energy meter

Hi i remembered the analog device website had a reference design using the ade7756.
Also do watch out for the phase shift of the CT, could be a problem if selection is not good.
 

Re: Energy meter

you can use ADE with shunt resistance to avoid the CT problems.
Also you have to start your design by the selection of the max current allowed and the Ibase. for further details you have to review the IEC62053-21.
 

Re: Energy meter

ahbadawy,

hi, ermm..just wondering if u have the soft copy for the IEC62053-21..i only have the hard copy..if u do, could u upload it then? thanks.
 

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