question

M. K. avatar image
M. K. asked

MPPT 450 200 - Leakage current

I have installed MPPT RS 450 200 with Multiplus II 8000VA and BYD Batteries.

There is a leak voltage between the body of the electrical panel and earth. the leakage is only when the MPPT is charging (not in idle state). 6-7 volts are measured between the body and earth. So I guess there is a PV voltage leak from inside the RS? did anyone experience this and what is the most convenient solution.

Thank you in advance,

victron communityvictron
4 comments
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

wkirby avatar image wkirby ♦♦ commented ·

Could you describe your earthing arrangents in more detail?

It would seem that the body of the electrical panel is not bonded to earth.

1 Like 1 ·
Show more comments
Mike Dorsett avatar image Mike Dorsett commented ·
Did you test your PV array for isolation (from ground)? This should be done on any size of array, and consists of measuring voltage from PV+ and PV- to ground for each string. This should be done under at least 500w/m^2 (half nominal irradiance), and the voltage from each pole to ground should be much less than the string voltage. i.e. if the string voltage is 400V, then the voltage to ground for each pole should be <25V.
0 Likes 0 ·
Show more comments
0 Answers

Related Resources

Additional resources still need to be added for this topic