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The mkiv Supra Owners Club

Running US mains products off UK domestic supply


Chris Wilson

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If I buy one of these:

 

http://www.abs-products.com/specialty-tools/motorized-ring-grinder.shtml#

 

what do I need to run it off UK domestic 240 V 50 hertz AC mains, just a 110 volt site transformer? They do one with what they describe as a DC motor, i assume that use a low voltage power supply? I will ask the company direct, but thought I'd run it past you fellows to see what you think. Thanks.

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I have a couple of 110 volt transformers, the yellow things that are used on building sites et cetera, as I have a 110 volt band-saw, and some 110 volt power tools. I take it these should do the trick? I did send you those rad caps, didn't I???? Worried now, brain like a sieve these days. Thanks for the help Peter.

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Aren't the US 60Hz?

 

Just a 110v transformer will do, as long as you get one that is big enough to power the grinder (obviously)

One thing you will find though, is that because its running off a 50Hz supply and not 60Hz, the motor wont do 5000rpm, more like 4100rpm.

 

Edit: missed the dc motor bit. Sorry. Defo worth checking to see if the circuitry for the ac/dc inverter is ok for 50Hz and if it'll greatly affect the motor speed.

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Aren't the US 60Hz?

 

Just a 110v transformer will do, as long as you get one that is big enough to power the grinder (obviously)

One thing you will find though, is that because its running off a 50Hz supply and not 60Hz, the motor wont do 5000rpm, more like 4100rpm.

 

Edit: missed the dc motor bit. The rpm will still be slightly affected though.

 

Yeah, was going to say, dependant on what the item is, the change in frequency can really mess it up :) Drills and stuff should be okay. (This due to timing circuits and circuit design based on the mains frequencies)

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I have a couple of 110 volt transformers, the yellow things that are used on building sites et cetera, as I have a 110 volt band-saw, and some 110 volt power tools. I take it these should do the trick? I did send you those rad caps, didn't I???? Worried now, brain like a sieve these days. Thanks for the help Peter.
yes chris got them thanks , and seems to have sorted the problem rad now stays full and ex tank down on the bottom mark when cold
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