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

[Windows XD]

In fact, now that I think about it you could probably cut out the middleman
and do something like plugging in a European 12VDC car charger and then
hooking a US inverter up to it so you wouldn't be reliant on the battery.

On Sun, Nov 16, 2025 at 10:48 AM Windows XD <antech6586856 at gmail.com> wrote:

> 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
>>
>>
>>
>>
>>
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