Inverters

[hairyasswelder]

Can you get a 110v inverter?
Have a 240v but 110v power tools and dont want the extra weight of a transformer.  Also seems pointless having both when one could do the job  :?

Steve

[McGuire]

 They'll be available in the USA, so may well be over here. Can't help with finding one, though - sorry!

[Guardian.]

wouldnt have thought they would give the required power for power tools would they? i know a lot of the 240v ones, they dont run much, batterychargers, laptop  and that, but wouldnt boil a kettle or do something usefull, but perhaps ive only seen  low power ones, not that familiar with them after first looking into them a couple of years ago , perhaps the technology is better now.

[Wolfie]

Sterling power do a few quasi-sine 110V inverters http://www.sterling-power.com/products-230vi-quasi.htm
The only one that seems to be in their online shop is https://sslrelay.com/s74222713.oneandoneshop.co.uk/sess/utn;jsessionid=1547c462bd11577/shopdata/index.shopscript

But as said it might be better to get one from the USA http://www.voltageconverters.com/inverters_110v.html (just the first link I clicked on) as they are much cheaper, but you would need to look into how much import duty and tax you will be liable for.

[Evilgoat]

Power tools have funny power equirements, an inverter is probobly the least efficeint way to do it :)

take circular saw at 400W

thets 400W/12v (wattage is same at any given voltage) gives a draw of 33A
Inrush current on the motor may be well up into the 100+ range IF the invertors can do that, As a motor starts it needs a huge kick of power to get the rotor moving, as it comes closer to running speed this draw drops. Offload the tool may run hapilly untill you try and do something with ti. Motors are harsh loads too as they tend to produce spikes and electrical noise that will nail a cheap inverter pretty quick. You'll be looking at a pure sine invertor with good filtering, fan cooled and lots of saftey. By the time you've done that a 2KVA DERV gennie will look cheap :)

[Range Rover Blues]

You can get 110volt gennies in this country which might have enough power to run power tools, I owuldn't want to run powertools from a 12 volt battery though, 120watts is 10 amps, 600watts 50amps :-.

[lampyrover31]

Hi
 Are you wanting to run it off the batteries or have the engine running to power them?
I only ask as a few years ago I saw a disco comercial that had an arc welder and 110v power fitted perminant that was designed to be used with the engine running.
Ask at your local CEF (city electrical factors) or any of the other electrical whole salers they may be able to find one.

110v transformers for tools are 55v to earth which means, and sorry if i am telling you what you already know, the transfer sends 55v down the live and neutral giving 110v the down to earth. This may casue a bit of an issue with the invertor but not looked to see if tools can run on standard 110v transformer.
 You can get 240v invertors up to 5000w but they arent cheap.
How do they do it on the utilitity vehicles cause when you look they have 16a, 32a 110v and a compressed airline out.

Just a thought could you have an alternator rewound to create 110v and put a breaker in to protect the vehicle and occupants.That is just a question as rally dont know much about alternators.

Cheers

[hairyasswelder]

Was thinking small grinder, drill etc nothing too heavy but it seems very complicated and very expensive  :(

How do they do it on the utilitity vehicles cause when you look they have 16a, 32a 110v and a compressed airline out.

My mate has a Transit for HGV breakdowns which has 110, 240v and air and it runs off PTO system
It was a Murphy construction van

Steve

[stuvy]

get an air compressor and then get some air tools, you can then get air bag jacks and tools etc and run every thing off one unit with hardly any work or cost compaired to 110v set up