[GreenKeys] Variable Frequency Drives for synchronous motors 50/60Hz

[Windows XD]

I've heard of using US 60 hertz battery powerbanks for using 60hz stuff but
I don't know how long that would power a teletype.
Something like this
<https://www.amazon.com/dp/B082TMBYR6/ref=sspa_dk_offsite_brave_1?aaxitk=813c48a373c02a87e7fda2054e43b758&tqtoken=AgR48QhKJSyZ88_kP9xWcVxj4qb28Y6KZWM8ipgr57rhTg0AGgABAAlyZWNpcGllbnQAC0FtYXpvbkFkc1RRAAEAEWF3cy1rbXMtaGllcmFyY2h5ACRiM2NlMjE3OS0wMzJhLTQ5NTAtOWFlZC00MTczZDMxZmNhMmEAXNl6RXMZCptZ6YmQri2HvwQpDuoWrd6_BX6KtSXtK8nXMwFE6ZdgvB9GW5UIy9JYq-K_8MIgX7x8AyNba-COmKMRGIpIifo2Pg3JQIiu0v-_I-9lU4AZa4S5YVU1AgAAEAD7mwwe168kJaRGEY5hm0W0Ko6_w6S0-Zx4pMArUcafOVh_FWuP1wzbvjcdgnKlFGz_____AAAAAQAAAAAAAAAAAAAAAQAAABvlvPRzPiLdbE3XGyuT_tcEtclAQeQ4TizDGmyJu38pYKKXBAb1GWxgsdzs&offsiteFlag=1>,
charge it with DC then use it for AC.

On Sun, Nov 16, 2025 at 1:57 AM Peter Leonard <peter at lencom.com.au> wrote:

> Hi All,
>
> We in the 50Hz 240V world have a problem with machines fitted with 60Hz
> synchronous motors. Machines originally used here are fitted with governed
> 110V motors but I have acquired two with 60Hz sync motors. The 240/110V
> problem is easily fixed with a transformer. But.
> Has anyone experience with using Variable Speed Drive Units, 240V drives
> are readily available but would have to power the motor via a transformer.
> Any suggestions.
>
> Thanks.
>
> Kind regards,
>
> 73 Pete VK5XP
>
>
>
>
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> https://teletype.net/gksearch
> >>> 2002-to-present greenkeys archive:
> http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive:
> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to antech6586856 at gmail.com
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20251116/981eee85/attachment.html>