The safest option to avoid RFI is to avoid all switching circuitry on the roof.
This incudes optimizers (which are DC to DC converters) and micro inverters
(DC to 240 VAC converters). I have a Fronius inverter, and I have also heard
that SMA inverters are quiet. Watch out for the exaggerated claims about the
effects of any shadows shutting down the entire string. This can't happen due
to the bypass diodes on the panels. And, you can easily make up any small
efficiency disadvantage of a single ground inverter system with one or two more
panels. My solar power system has zero RFI with no ferrites or twisted wires.
Randy KQ6RS
-----Original Message-----
From: RFI <rfi-bounces@contesting.com> On Behalf Of Raymond Benny
Sent: Monday, May 27, 2019 9:58 PM
To: ny9h@arrl.net
Cc: rfi@contesting.com
Subject: Re: [RFI] There goes the neighborhood.....
I agree with Bill, I have a 6kw SMA inverter and no noise.
Not sure what "dual inverter" means. My SMA has 3 legs/inputs enough for about
30 panels.
Ray,
N6VR
Near Prescott, AZ
On Mon, May 27, 2019, 6:20 PM Bill Steffey <ny9h@arrl.net> wrote:
> since my SMA standard inverters have NO noise I would test an SMA
> optimizer installation//////
>
> I bet they are also quiet...
>
>
> bill
>
>
> On 5/27/2019 6:33 PM, Jim Brown wrote:
> > On 5/27/2019 3:13 PM, Gary Johnson wrote:
> >> Most incredible thing: He’s willing to have them remove the entire
> >> system if they can’t resolve the RFI! But, he wants to know if
> >> there exists an RFI-quiet system*with panel optimizers*.
> >
> > Wow -- buy that guy a case of his favorite single malt!
> >
> > 73, Jim K9YC
> >
> > _______________________________________________
> > RFI mailing list
> > RFI@contesting.com
> > http://lists.contesting.com/mailman/listinfo/rfi
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|