On 23/07/2019 13:29, Ian Jackson wrote:
In message , NY writes
"The Natural Philosopher" wrote in message
...





60hz works on 50hz transformers. The reverse is less lilkely to be true

Ah, OK. I thought it might be a reciprocal arrangement, but evidently
it's not.

I wonder how US came to standardise on 60 Hz and Europe on 50 Hz in
the first place.

In answer to the comment above, when considering iron cored
transformers, the maximum power you can transmit is the energy stored in
the magnetic material times the frequency.

That means if a transformer is pared to the bone on 60Hz it would
overload on 50Hz.



There's a current thread in one of the UK amateur radio forums, where
the following links were given. They make interesting reading
(especially the second one).
https://en.wikipedia.org/wiki/Mains_...ity_by_country
https://en.wikipedia.org/wiki/Utility_frequency

Back in the 1980s I had a switchable 120/240V razor, which buzzed in
synchronism with the mains. In the USA, the 60Hz buzz was quite
obviously not the 50Hz I was used to at home.





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To ban Christmas, simply give turkeys the vote.