[SML] Electrical question

[Jerry Durand]

When power goes off and comes back the voltage can get a bit crazy for a bit due to loading and quality of the neutral connection on the transformer.

There is also power flickering on and off that can confuse the soft start in larger power supplies, but a wall wort wouldn't have that.

On Aug 16, 2022, 15:28, at 15:28, Paul Guncheon via Stagecraft <stagecraft at theatrical.net> wrote:
>Kinda off topic: I had a power outage at home that lasted about 6
>hours.
>After the power came on, I discovered that three wall warts (the
>ubiquitous
>plug-in transformers) were dead. As I hadn't used the devices that
>these
>wall warts powered all that often, it was days or weeks after the power
>outage that I found out so I'm not sure that the power being turned
>back on
>was the cause. Is it possible that it was? Note that several other
>transformers, notably Apple device chargers, were not affected.
>However,
>the ones that died were connected to devices (they were not powered on
>at
>the time) but the Apple chargers were not connected to anything.
>
>One of the ones that died powered my doorbell... which is why this is
>so
>curious. The other two were less than two years old.
>
>-p
>
>
>------------------------------------------------------------------------
>
>____________________________________________________________
>For list information see <http://stagecraft.theprices.net/>
>Stagecraft mailing list
>Stagecraft at theatrical.net
>http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://theatrical.net/pipermail/stagecraft_theatrical.net/attachments/20220816/7fe9f45e/attachment.html>