How do i setup the tdk current transformers with the eval ade9000 shield board?

https://www.analog.com/media/en/technical-documentation/user-guides/ADE9000-UG-1098.pdf   pg 4

https://www.analog.com/media/en/technical-documentation/user-guides/ev-ade9000shieldz-ug-1170.pdf pg 7

Dave

Hi Dave!

Thanks for sharing the info and guidance. By calculating the resistors R1 and R2 at 5.1 against the CT what should I achieve? Should this be done during calibration or prior?

The current channel  ADC input is .707vrms  I would suggest half of fullscale or more for surge currents

if you have 15a and a 1000:1 ct 

(.707/2)(15/1000) = 23 ohms   I would divide this by 2 and use then as differential burdens as show in the diagrams I sent R1 and R2

Replace the values for your ct ratio  and current and  you can calculate the burden value you need. 

Dave

Hi Dave,

The nominal ct ratio is 3000:1, so I should calculate accordingly as per your guidance, correct? Thanks

(.707/2)(15/3000) = x

What is your max current? Replace 15A with your current

I will get back to you on the max current we will use for testing purposes. Noted on replacing the 15A with the max current value.

I will get back to you on the max current we will use for testing purposes. Noted on replacing the 15A with the max current value.