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low noise solar inverters

Posted: Fri Nov 09, 2018 8:29 am
by VK4WTN
hi all, My Aurora solar inverter has failed and needs replacing. The Aurora creates no noise issues but its hard to source another one. Any ideas on which of the modern inverters are the most rfi friendly. Would hate to replace the aurora with another brand and find I have RF noise problems.
Wayne VK4WTN

Re: low noise solar inverters

Posted: Fri Nov 09, 2018 8:47 am
by VK1JA
Hi Wayne,

The SMA inverter at my previous qth, and the fronius inverter at my current qth are both rfi quiet.

They do cost a little more, but well worth it.

Jayson

Re: low noise solar inverters

Posted: Fri Nov 09, 2018 9:40 am
by VK5PJ
Hi Wayne,
the fronius brand of inverter is also RF quiet, I had a SMA before that and it was RF quiet. Now the Bigger fronius inverters do have fans in them so if it is mounted on a house take that into account.

Re: low noise solar inverters

Posted: Fri Nov 09, 2018 9:51 am
by VK4WTN
thanks for the replies Jayson and Peter, sounds like the Frontius might be the way to go. The unit is mounted in the house not that far from the radios so should the fan noise be a big issue Peter?
cheers Wayne

Re: low noise solar inverters

Posted: Sun Nov 11, 2018 5:11 am
by VK4EMS
Hi Wayne I use a 5kw Solax inverter ,it is rf quiet and is in the garage as is my radio"shack" . it has fans but i dont find them an issue
cheers . mark VK2EMS

Re: low noise solar inverters

Posted: Sun Nov 11, 2018 6:42 am
by VK4WTN
thanks Mark, its always a bit of a worry re rfi, you don't know until the units installed what you are going to see.I may still try and pick up an old stock Aurora if there is any still available. cheers Wayne

Re: low noise solar inverters

Posted: Mon Nov 12, 2018 7:18 am
by VK3ZAZ
Fronius German dual 5k under 24 panels 20 m below my array
nil nuttin zip
and rf power no effect
at night min ops nil issue anyway

FRONIUS GERMAN

Re: low noise solar inverters

Posted: Mon Nov 12, 2018 11:44 am
by VK5KK
Fronius is Austrian!

Sent from my SM-J710GN using Tapatalk

Re: low noise solar inverters

Posted: Mon Nov 12, 2018 1:35 pm
by VK7HH
+1 for Fronius. I have one and it's extremely quiet... don't even know it's there. IMHO one of the best on the market.

And yes... Fronius is Austrian.. not German...

Re: low noise solar inverters

Posted: Tue Nov 13, 2018 7:20 am
by VK4WTN
Ive managed to source an ABB inverter ( same as the Aurora) so all should be good
Wayne

Re: low noise solar inverters

Posted: Tue Nov 13, 2018 8:00 am
by VK5PJ
Hi Wayne,
once the new inverter is up and running, can you please update this thread with its noise performance as it may help others in the future when they need to choose a new inverter.
VK4WTN wrote:Ive managed to source an ABB inverter ( same as the Aurora) so all should be good
Wayne

Re: low noise solar inverters

Posted: Tue Nov 13, 2018 9:30 am
by VK4WTN
for sure Peter, it should be installed this week.The Aurora that I had (the ABB is the same unit) produced zero noise and is mounted 2M from the radios.

Re: low noise solar inverters

Posted: Sat Nov 17, 2018 6:38 am
by VK4WTN
Just an update, fitted a second hand ABB (Aurora) inverter yesterday and there is no detectable noise
Wayne

Re: low noise solar inverters

Posted: Thu Dec 06, 2018 10:25 am
by VK2AAH
I am looking at installing a system shortly. When I googled the ABB Aurora I found some hideous stories about how unreliable they are, and recommending the Fronius. Any comments?

Cheers


Richard VK2AAH

Re: low noise solar inverters

Posted: Thu Dec 06, 2018 11:17 am
by VK6CPU
Have had a Fronius 5Kw 3 phase inverter for two years now. Don't know its there. Incredibly quiet/clean system.