[RE-wrenches] AM noise on batteryless inverters

[David Katz]

I have an SMA 2500U in my bedroom outside wall and Tigo Maximizers on 
the modules and have noise on AM radio in the bedroom in the daytime.

David Katz

Chief Technical Officer

AEE Solar

1155 Redway Drive

P.O. Box 339

Redway, CA  95560

Tel (707) 825-1200

Fax (707) 825-1202

dkatz at aeesolar.com <mailto:david at aeesolar.com>

www.aeesolar.com <http://www.aeesolar.com/>

DISCLAIMER:
This communication, along with any documents, files or attachments, is 
intended for the use of only the addressee and contains privileged and 
confidential information. If you are not the intended recipient, you are 
hereby notified that any dissemination, distribution or copying of any 
information contained in or attached to this communication is strictly 
prohibited.  If you have received this message in error, please notify 
the sender immediately by e-mail reply and destroy the original 
communication and its attachments without reading, printing or saving in 
any manner.


On 6/19/2010 12:47 PM, frenergy wrote:
> Along these "AC noise" lines.......
>
>        About 6-7 years ago I installed 2, SMA 2500U inverters at a 
> friend's (most dangerous situation, installing for a friend...like 
> selling a friend your used car!) place.  This guy is a Ham radio 
> operator AND the inverters are on the wall opposite all of his gear 
> (what was I thinking?) Fortunately, he's still my friend...no noise 
> can be detected on his ham radios.
>
> Bill
>
> Feather River Solar Electric
> 4291 Nelson St.
> Taylorsville, CA  95983
> 530-284-7849/6544 fax
>
>
> ----- Original Message ----- From: "jay peltz" <jay at asis.com>
> To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
> Sent: Friday, June 18, 2010 12:00 PM
> Subject: Re: [RE-wrenches] AM noise on batteryless inverters
>
>
>> Hi Darryl,
>>
>> Personally I've tried this and had no luck with offgrid
>>
>> But the issue is that a very competent installer friend, whos not on 
>> the wrenches has had issues with PV powered and AM radio noise, but 
>> not with
>> SMA or Fronius.
>> He's actually swapped inverters same location from PV to SMA and the 
>> AM noise was gone and has had this problem enough times to no longer 
>> use them for folks who like to listen to AM during the day.
>>
>> So I'm trying to find if anyone else has had anything similar?
>>
>> Thanks,
>>
>> jay
>>
>> peltz power
>>
>>
>> On Jun 17, 2010, at 9:30 PM, Darryl Thayer wrote:
>>
>>> I have heard that putting small ferrite donuts around the AC and DC 
>>> wires will reduce this noise.  Place them inside the inverter.  they 
>>> are avaiable from DigiKey
>>> Darryl
>
> _______________________________________________
> List sponsored by Home Power magazine
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Options & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive: 
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out participant bios:
> www.members.re-wrenches.org
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20100619/991d8055/attachment-0003.html>