Aurora Riso

[Paul Camilli]

Hi chaps,

my Aurora 3.6kW wind inverter has just developed a GFI riso fault does it just refer to an earth fault on the DC side? my turbine seems to be generating AC wild OK.

Cheers, Paul

[Rob Beckers]

Hi Paul,

Yes, the message is indeed a ground fault on the DC side. Power-One/ABB has a guide to troubleshoot these (they can be hard to find): https://www.greenpowertalk.org/attachment.php?attachmentid=1054&d=1353935400

My experience has been that these ground faults are real, and not the result of some artifact or a broken inverter. That's not to say something couldn't be wrong with the inverter, just that it's unlikely.

Good luck!

-RoB-

[Paul Camilli]

Hi Rob,

I'm mystified, been working in my shed all day right next to the inverter. I tried looking at all the connections yesterday with no luck. Today I checked the JB at the bottom of the tower, it looked OK but was resting on the ground having been disturbed by a pig! Still showing GFI fault light and riso. Then a few hours later (as I was watching it) it just cleared and reconnected to my grid :nuts: Thanks for the link, I shall study it with great interest as I'm not convinced it was that JB at the tower base.

Cheers, Paul

[Ralph Day]

Blame the pig!
Stay away from the RE stuff on penalty of becoming Bacon!

[Paul Camilli]

Blame the pig!
Stay away from the RE stuff on penalty of becoming Bacon!

Hmm, tasty

https://lifeattheendoftheroad.files.wordpress.com/2022/02/img_1862_thumb.jpg?w=345&h=260