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

[Bradley Bassett]

I think this Victron uses a toroid which is more efficient. It's sort of
like the ones AEE used to sell. Maybe the efficiency is not so important
for a pump as it would be for continuous use.

Victron Autoformer
<https://www.solar-electric.com/victron-energy-autotransformer-100-amp-120-240-vac.html?srsltid=AfmBOoobFGJTOtSiF4Px7QctUDjdVeFF0RAqS7DPp_KvFsKxarZdN6KNdq4&gQT=1>

Brad

On Sat, Jan 18, 2025 at 6:11 AM Kirk Herander via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> John,
>
> I have a new Outback 120/240 xformer if you need it. Contact me off list.
>
> On Sat, Jan 18, 2025 at 9:06 AM John Blittersdorf via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> 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
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>
> --
>
> *Kirk Herander / **kirkh at vermont.solar <kirkh at vermont.solar>*
>
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