Joe. The UPS method of frequency conversion is not the only one, but it's the cheapest for high power output. All UPS devices of this type run from batteries and convert low voltage DC to high voltage AC, which means that they have frequency generating circuitry. Many may be fixed at one frequency, some are dual frequency - adjustable. For some reason, to buy a frequency converter that runs straight from the supply would cost nearly double that of an equivalent UPS. You also have the advantage that if their is a power failure, you can power substantial lighting from a 2KW UPS and make your neighbors jealous when you can cook your food and they can't. :-)
The microwave is an American 'over-the-range' model with an extractor built in to its base. The one we have we literally carried onto a 747 ourselves and is probably the only one of its type in Europe. They are just not available anywhere in Europe (believe me I tried to source one) and their is nothing made for 240V 50Hz for the US market. The magnetron (being DC excited) runs perfectly well on 50Hz, as does the extractor motor and turntable. It's only the time clock that displays time of day incorrectly, so we leave the display turned off. As I said, a $1500 UPS to run a clock is just utterly extravagant. :-) To keep this vaguely on topic - I suppose I could buy one and run all of my PCs from it as well. <g> Regards, Alan. www.theatreorgans.co.uk www.virtualtheatreorgans.com www.paramountorganworks.com ----- Original Message ----- From: [email protected] To: [email protected] Sent: Wednesday, April 25, 2012 3:52 PM Subject: Re: [AP] UPS Alan, how do you use a UPS to convert freq from 50-60? You must have an American UPS, yes? Seems like much expense for a MW oven. Would not a new oven from the UK be cheaper? Especially since MWs are so cheap these days. joe salerno On 4/25/2012 5:27 AM, Alan K Baker wrote: > I need a UPS for our American Microwave Oven. It's 115V 60Hz and UK > supply is 240V 50Hz. Although I have a step-down transformer, the clock > runs from the supply so it always runs slow. We just leave the display > off and for the short cook times, it doesn't make much difference. > > The cheapest way is to use a UPS to convert frequency, but at $1500 for > a 2KW UPS, it's a bit much just to run a poxy clock. :-) > > Regards, > > Alan. > > www.theatreorgans.co.uk > www.virtualtheatreorgans.com > www.paramountorganworks.com > > ----- Original Message ----- > From: Gregg Eshelman > To: [email protected] > <mailto:Adobe-Premiere%40yahoogroups.com> > Sent: Wednesday, April 25, 2012 10:33 AM > Subject: Re: [AP] UPS > > I have a small BackUPS 650 with the tower and monitor of my main PC > plugged into it. > > The main reason for it is the electricity here quite often has "blip > outs" that last just long enough to cause a computer to shut down and > all the digital clocks* to blink 12:00. > > Can barely notice the drop in a slight flicker in lights. Of course a > "blip out" is nearly always guaranteed to happen in the middle of a > render or conversion of a long video. > > Ihave a larger BackUPS with monitoring port I should use on Megatower > 2000 but I haven't gotten a round tuit yet. > > *Whatever happened to battery backups, or even a capacitor holding > enough charge to power a clock for one or two seconds? I used to have a > Betamax VCR made by NEC with a feature no other VCR ever had, except for > other NEC Betas. A built in NiCd backup battery for the clock and timer. > Imagine that, the most "duh, that's obvious" feature there could ever be > but only NEC put it in. The V70 also had about 40 jacks, meters, knobs, > dials and sliders encrusting the front and back - but not a single Sony > manufactured component. (Possibly the only Betamax licensee to not take > the bargain license option of buying major parts from Sony.) > > [Non-text portions of this message have been removed] > > -- Joe Salerno ------------------------------------ Yahoo! Groups Links [Non-text portions of this message have been removed] ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Adobe-Premiere/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Adobe-Premiere/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
