Ah but transformer design will become a lost art and will spawn lots of little garage industies :-)) I have certainly had some Heath transformers overheat and go shorted-turn primary when used on 50Hz in the UK, and also some Japanese ones.......they have 50Hz and 60Hz I believe unless they have rationalised in the last 30 years. What makes it worse is our nominal is 240V AC not 220 Alan G3NYK
----- Original Message ----- From: "Charles P. Steinmetz" <[email protected]> To: "Discussion of precise time and frequency measurement" <[email protected]> Sent: Monday, June 27, 2011 7:36 PM Subject: Re: [time-nuts] No more 60Hz! TEC Elimination > > >The only thing I know of, apart from clocks, that you should not run > >on the wrong frequency are oldfashioned mechanical shavers. > > There are lots of consumer products sold in North America that > specify 60 Hz only, and in which the transformers will hum and > overheat if run on 50 Hz. I have always designed with transformers > that will accept 47-63 Hz, but many competitors do not. As more and > more items move to switching power supplies, this will be less of an > issue (of course, in many applications the switching supplies > themselves will create new issues...). > > Best regards, > > Charles > > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
