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ADE7878 with smaller WTHR VARTHR calculates wrong energy values

Question asked by evren on Jan 20, 2014
Latest reply on Feb 10, 2014 by dlath

Hi ,

 

My question ist related to get bigger energy values WATTHR and VARHR in short time interval (like 80 ms). My interest is high resolution power but not energy !!!

 

In order to be able to get bigger WATTHR and VARHR in short time interval i have to reduce threshold values. But when i try to reduce the threshold values, after a point, WATTHR and VARHR become same even though there is no reactive energy in measurement system.

 

Does the ADE7878 get trouble in small threshold values ???

 

 

Best regards

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