low noise solar inverters

Electromagnetic Compatibility, TVI, BCI, etc Interference Issues
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VK4WTN
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low noise solar inverters

Post by VK4WTN » Fri Nov 09, 2018 8:29 am

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

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Re: low noise solar inverters

Post by VK1JA » Fri Nov 09, 2018 8:47 am

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

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Re: low noise solar inverters

Post by VK5PJ » Fri Nov 09, 2018 9:40 am

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.
Peter Sumner, vk5pj
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VK4WTN
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Re: low noise solar inverters

Post by VK4WTN » Fri Nov 09, 2018 9:51 am

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

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Re: low noise solar inverters

Post by VK4EMS » Sun Nov 11, 2018 5:11 am

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

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Re: low noise solar inverters

Post by VK4WTN » Sun Nov 11, 2018 6:42 am

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

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Re: low noise solar inverters

Post by VK3ZAZ » Mon Nov 12, 2018 7:18 am

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
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VK5KK
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Re: low noise solar inverters

Post by VK5KK » Mon Nov 12, 2018 11:44 am

Fronius is Austrian!

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Re: low noise solar inverters

Post by VK7HH » Mon Nov 12, 2018 1:35 pm

+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...

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Re: low noise solar inverters

Post by VK4WTN » Tue Nov 13, 2018 7:20 am

Ive managed to source an ABB inverter ( same as the Aurora) so all should be good
Wayne

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Re: low noise solar inverters

Post by VK5PJ » Tue Nov 13, 2018 8:00 am

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
Peter Sumner, vk5pj
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Re: low noise solar inverters

Post by VK4WTN » Tue Nov 13, 2018 9:30 am

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.

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Re: low noise solar inverters

Post by VK4WTN » Sat Nov 17, 2018 6:38 am

Just an update, fitted a second hand ABB (Aurora) inverter yesterday and there is no detectable noise
Wayne

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Re: low noise solar inverters

Post by VK2AAH » Thu Dec 06, 2018 10:25 am

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

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Re: low noise solar inverters

Post by VK6CPU » Thu Dec 06, 2018 11:17 am

Have had a Fronius 5Kw 3 phase inverter for two years now. Don't know its there. Incredibly quiet/clean system.

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