I am using ADE7758 for energy measurement using Line accumulation.

what is the expected value of APCFDEN ?

How should we select the range of voltage and current ?

Now i am taking voltage full scale -500 V and current 40A, after calculating APCFDEN comes to be 900.

My set up is having following values.

voltage - 233V, current- 3.96A, 50Hz and Power factor=1.

In LINECYC i have stored 600(Dec), Accumalation time = 5.99.

I am using only one phase for calculation.

After 6 sec if i read Watthr register i got 11635d, and based on equations 60 and 61 i calculated expected value, it comes to be 17695d.

xWG= ((17695/11635)-1)*4096=2133.

What are the typical values of xWG ?

where am i doing wrong ?

what steps to be followed in offset calculation ? can i select same LINECYC for both Itest and Imin ?

Hi Chaniitr,

Let's start from the beginning because I have a feeling that we can simplify your calibration method quite a bit.

First off, are you calibrating only a single meter or are you setting up a calibration procedure for a large set of meters?

Second, are you only concerned with the actual energy registers or do you also require pulses from the CF output?

With this information we can make things a little clearer and simpler.

Regards,

Dlath