[RE-wrenches] 120-240 Transformer loud vibration and humming.

[Christopher Warfel]

That's strike one, I get two more.

On 1/22/2025 10:31 PM, John Blittersdorf via RE-wrenches wrote:
> Christopher,
> Update on the Transformer Humming.  Installed a new PSX-240 from Kirk 
> and it is LOUDER than the T-240 that I took out.
> I have a call into the well driller to see if they have a record of 
> the pump size or other details. When connected
> directly to the grid via transfer switch, still loud noise... same 
> with battery only.  I did not check the 120VAC 30 amp break
> in the backed up loads sub panel. All other wiring was redone as I 
> switched the pump directly to the grid until I received the
> new transformer and back to the inverter again. so all the connections 
> were redone except the 120 breaker.
>
> John
>
>
> On Wed, Jan 22, 2025 at 10:30 AM Howie Michaelson via RE-wrenches 
> <re-wrenches at lists.re-wrenches.org> wrote:
>
>     John,
>     If you need a T240 (internal or external), I have a few used ones
>     (and maybe a new one) in storage.
>     Howie
>
>
>     On Wed, Jan 22, 2025, 10:14 AM Christopher Warfel via RE-wrenches
>     <re-wrenches at lists.re-wrenches.org> wrote:
>
>         I could be a loose electrical or mechanical connection. It's been
>         installed for a while and connections could have loosened up from
>         expansion and contraction.
>
>         On 1/18/2025 9:06 AM, John Blittersdorf via RE-wrenches wrote:
>         > Hi Wrenches,
>         >   I have a customer with an SW4024 installed in 2003 with
>         the Trace
>         > T220 transformer for
>         > her well pump.  Recently it has started making a lot of
>         noise when the
>         > well pump comes on.
>         > I checked the current on the well pump and it seems to be in
>         the
>         > normal range.  I have never had a transformer failure. Could
>         this be a
>         > failing transformer?
>         >
>         > Also, I have not been able to source a new one (Outback
>         T240).  Are
>         > there other brands
>         > some of you may have used for a step up transformer?
>         >
>         > John Blittersdorf
>         >
>         > _______________________________________________
>         > List sponsored by Redwood Alliance
>         >
>         > Pay optional member dues here: http://re-wrenches.org
>         >
>         > List Address: RE-wrenches at lists.re-wrenches.org
>         >
>         > Change listserver email address & settings:
>         >
>         http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>         >
>         > There are two list archives for searching. When one doesn't
>         work, try the other:
>         > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>         >
>         http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>         >
>         > List rules & etiquette:
>         > http://www.re-wrenches.org/etiquette.htm
>         >
>         > Check out or update participant bios:
>         > http://www.members.re-wrenches.org
>         >
>         -- 
>         Christopher Warfel, PE
>         ENTECH Engineering, Inc.
>         PO Box 871, Block Island, RI 02807
>         (401) 447-5773
>
>         _______________________________________________
>         List sponsored by Redwood Alliance
>
>         Pay optional member dues here: http://re-wrenches.org
>
>         List Address: RE-wrenches at lists.re-wrenches.org
>
>         Change listserver email address & settings:
>         http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
>         There are two list archives for searching. When one doesn't
>         work, try the other:
>         https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>         http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
>         List rules & etiquette:
>         http://www.re-wrenches.org/etiquette.htm
>
>         Check out or update participant bios:
>         http://www.members.re-wrenches.org
>
>     _______________________________________________
>     List sponsored by Redwood Alliance
>
>     Pay optional member dues here: http://re-wrenches.org
>
>     List Address: RE-wrenches at lists.re-wrenches.org
>
>     Change listserver email address & settings:
>     http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
>     There are two list archives for searching. When one doesn't work,
>     try the other:
>     https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>     http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
>     List rules & etiquette:
>     http://www.re-wrenches.org/etiquette.htm
>
>     Check out or update participant bios:
>     http://www.members.re-wrenches.org
>
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> Pay optional member dues here:http://re-wrenches.org
>
> List Address:RE-wrenches at lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When one doesn't work, try the other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> http://www.members.re-wrenches.org
>
-- 
Christopher Warfel, PE
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
(401) 447-5773
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20250123/5e830997/attachment.htm>