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Article #16177Re: 110V -> 220/240Vconversion for appliances
From: A.Daviel
Date: Thu, 21 Jan 1993 21:34
Date: Thu, 21 Jan 1993 21:34
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3460 bytes
In article <u9222774.727646337@oxygen.sys.uea.ac.uk>, u9222774@sys.uea.ac.uk (A. Moyns) writes... >apm@kaa.ee.umist.ac.uk (Paul Marriott) writes: > >>I am shortly moving to Canada and have quite a bit of UK electrical >>equipment to take. Obviously, this is rated at 240V, 50Hz. Whats the >>deal with transformers to convert 110->240? What sort of power ratings >>are available? Enough to power a 3KW kettle? Or is it better to buy >>stuff over there that is rated at 110V? > >You're asking for serious problems here. 3kW, you're talking big transformers! > >>Also, is it possible to wire two outlets in series to get 220V? Or is >>that asking for trouble!? > I moved to Canada from the UK in '81. The power here is normally 110V 60Hz. Single-family houses are fed with two 180degree phases of 110V, plus ground (earth) plus neutral. The lights all run off one or other of the 110V phases. Electric heating, clothes dryer and range (cooker) all run off 220V. Most electrical outlets come in pairs. The outlet pairs in the kitchen are made to run off different phases - don't ask me why, I think the idea is that one is likely to plug a kettle and toaster into the same outlet pair and they should not be on the same circuit breaker (typically 16A). In some apartment buildings I think that there is 208V 3-phase instead of 220V - I'm not so clear on this, not having lived in one. For small stuff, you can use a transformer or autotransformer. It's still 60Hz though. Transformer get heavy and expensive really quickly; 50W is no big deal. I got a 60Hz rotor for a record player, and run it with a transformer. I have a British-bought dishwasher and washing machine, and run them on 220V with no problems. Before I moved I wrote to the manufacturers for advice, and got replies ranging from "Go for it" to "It'll never work, the widgets will melt, you'll all be doomed, etc.". In view of the absurdly low resale value of my relatively new appliances, I went for it. I presume that the time-dependant portions of their cycle run 20% fast, but a lot of it is state-dependant (fill till a certain level, heat till a certain temperature, etc.) I also run a British iron, boiling jug and blender. For an electonic alarm clock I was fond of I rewound the transformer and grounded a frequency-select pin on the chip. I also have a British B&W TV that I used to use with a computer, currently serving time as a video monitor after adjusting the vertical height (I could pick up pictures from a couple of TV stations, but the sound carrier is different). > >>Another question is light bulbs. Are 110V bayonet fitting bulbs available >>or Edison Screw to bayonet converters? Haven't seen any. I converted one light fitting by simply substituting a screw-type receptacle for the bayonet one. -- Andrew Daviel, Vancouver, Canada
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Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!destroyer!cs.ubc.ca!unixg.ubc.ca!reg.triumf.ca!advax From: advax@reg.triumf.ca (A.Daviel) Newsgroups: sci.electronics Subject: Re: 110V -> 220/240Vconversion for appliances Date: 21 Jan 1993 13:34 PST Organization: TRIUMF: Tri-University Meson Facility Lines: 56 Distribution: world Message-ID: <21JAN199313343278@reg.triumf.ca> References: <7263@m1.cs.man.ac.uk> <u9222774.727646337@oxygen.sys.uea.ac.uk> NNTP-Posting-Host: reg.triumf.ca Keywords: Voltage conversion News-Software: VAX/VMS VNEWS 1.41