Dick Axtell
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| posted on 29/1/09 at 12:50 PM |
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Generator - Wattage??
The latest Aldi promo ad has a 650W generator - 65GBP!
Seems to be good value. However, what's the recommended wattage for power tools use? Will 650W be man enough for a hand drill, or angle
grinder?
At least it'll be better than nothing.
Work-in-Progress: Changed to Zetec + T9. Still trying!!
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russbost
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| posted on 29/1/09 at 01:28 PM |
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most hand tools are in the 350 - 750 Watt range apart from stuff like big angle grinders, but you could only run one thing at a time & don't
even dream of putting on the kettle, vacuum cleaner or a heater!
I would imagine they are probably aimed more at running, fridge, freezer, lights & possibly computer & Tv.
Does anyone know if you can use 2 generators together or do you need something to align the phases???
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furoreltd & furoreproducts, discounts available for LCB users.
Don't forget Stainless Steel Braided brake hoses, made to your exact requirements in any of around 16 colours.
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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carlknight1982
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| posted on 29/1/09 at 05:31 PM |
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im a generator engineer and 650w is next to useless for anything with a motor, if you an angle grinder and it "jams" your likely to stall
the engine and being that small it would be a 2 stroke so you could damage it.
best look for a 2 - 3 KVA generator if your intending to run power tools
you can use two generators together its called syncronisation but however you have to get the voltage and frequency a prefect match to within 0.010 of
a v/Hz if they are not perfectly matched one will turn the alternator on the other into a motor and drive the engine, again causing damage, generally
when we do it we use computer regulated engines with motorised breakers to prevent accidental "reverse power" damage.
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v8kid
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| posted on 29/1/09 at 05:55 PM |
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I've got a similar 650w genny and it powers my oil boiler fan and oil pump, gentral heating water pump and fridge all at once. Uses 2 stroke, is
a bugger to start but will run all day on a tankfull.
You can get a 4 stroke 2kw genny from mackro for £99 plus vat. I'd spend the extra just for the easy starting and you have the extra capacity as
well
Cheers
David
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Dick Axtell
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| posted on 30/1/09 at 11:35 AM |
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Thanks for such useful advice. Gotta start looking elsewhere. For the nearest Makro, for starters!
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MautoK
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| posted on 12/2/09 at 06:57 PM |
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B&Q (I think) in Gloucester had 750W generators for around £35 a couple of years ago. Couldn't resist it, so I bought one, just to keep the
freezer going and to have a light or two in the event of power failure...
Of course, haven't had a power outage since! 
He's whittling on a piece of wood. I got a feeling that when he stops whittling, something's gonna happen. (OUATITW/Cheyenne)
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owelly
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| posted on 14/2/09 at 09:48 PM |
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As said, more than one generator need to be run in synchro with each other. They won't always run the other as a motor, unless one is a lot
bigger than the other, but it will reduce the power output a lot!
Makro did a 2.2kv diesel genny a year or two back for just over £150 IIRC.
I've played with the cheapo Chinese sets (often stickered as German or even UK products!) and you get what you pay for!
http://www.ppcmag.co.uk
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MikeRJ
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| posted on 15/2/09 at 02:00 PM |
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quote:
Originally posted by owelly
As said, more than one generator need to be run in synchro with each other. They won't always run the other as a motor, unless one is a lot
bigger than the other, but it will reduce the power output a lot!
And either blow fuses or burn out the generator windings.
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