Running 120v small power tool on UK 230v power (with pics)

Pick up one of those yellow box transformers, from what I hear they're not terribly expensive. Another option would be to use a solid state travel converter, they consist essentially of a triac light dimmer set to a fixed output.

Power tools in general use series wound universal motors, the frequency doesn't really matter, in fact they will even run on DC.

Yes - they're actually better value than domestic units if you compare these prices at the sort of current you require.

I take it there isn't a 230 volt version? A new motor supplied as a spare would probably be cheaper than re-winding. It's possible the motor is used in other equipment too.

They are just simple transformers so don't alter the frequency, which would be an expensive option. Site transformers in the UK are used for safety - not to save money by importing better value tools. ;-)

But most hand power tools won't be too concerned about the frequency.

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A generic light dimmer may not work with a motor as a result of the change in phase between voltage and current due to its inductance. If the triac fails or ends up being on solid, you get 220 VAC across the 110 V motor and the motor won't last long.

The transformer is safest.

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"Carl Farrington" wrote in message news:eda7pi$1qd$1$ snipped-for-privacy@news.demon.co.uk...

Use of the transformer is required by UK law. Buy a smaller transformer or rent one.

They're even cheaper at tooled-up.com :)

Price isn't a concern, it was just the size of the thing really.

Unfortunately not. This particular unit is widely regarded as 'unique' and the best out there for getting your cars paintwork looking nice. (It's a Porter Cable 7424). My uncle, a bodyshop professional, tends to disagree, saying that a DA is a DA, and a professional would use a regular buffer and have the job done in under half the time. I bought it already though ;)

That did cross my mind.. I wonder if the motor has any markings. Hmmm

That's good to know! Thanks.

"Carl Farrington" wrote in message news:eda7pi$1qd$1$ snipped-for-privacy@news.demon.co.uk...

..

Thanks everybody for the feedback. A yellow box it is then! It's good to know for sure that the triac is a bad, and dangerous idea.

Thanks for your time and valuable advice.

which law would that be then?

UK