have got the chance to buy a tig welder with AC/DC output for £200, the only problem is its 3 phase. Does anyone know if its possible to get it converted to single phase.
I'm going to guess that it would need a different transformer at least. You would probably do better getting one of those devices that converts single
to three phase, trouble is, quite expensive
John
What amperage does it use? TIG welders generally use more amps than MIG. Professional single phase transformer based powersupplys can easily pull 100amps. A phase converter may be usable but they get really expensive for high current applications. You may not be able to supply the amount of current it requires from a domestic socket.
quote:
Originally posted by interestedparty
I'm going to guess that it would need a different transformer at least. You would probably do better getting one of those devices that converts single to three phase, trouble is, quite expensive
John
quote:
Originally posted by daytona
have got the chance to buy a tig welder with AC/DC output for £200, the only problem is its 3 phase. Does anyone know if its possible to get it converted to single phase.
not sure of the make although i know its american, capable of 300A with foot control
I've also just bought a 3 phase lathe,and have been researching homemade rotary converters,try these links they may help.
Good luck
Al.
http://home.att.net/~waterfront-woods/Articles/phaseconverter.htm
http://home.att.net/~chipmaker/projpage.html
http://www.practicalmachinist.com/cgi-bin/ubbcgi/Ultimate.cgi
Hello wadders, what hp is your three phase motor as i have got single to three phase inverters for sale but only up to 1hp
Just a thought - you could find the other two phases at your local sub-station, and run a couple of extension leads to your house. "Nobody would
mind!".
Sorry, I didn't even take my coat off...
Hello wadders, what hp is your three phase motor as i have got single to three phase inverters for sale but only up to 1hp
Thanks for the offer Daytona,but unfortunately the lathe is 2 hp.
Cheers
Al.
If one wanted to buy a three phase lathe or other piece of motor driven machinery, wouldn't it be easier to just change the motor for a single phase
unit?
John
If one wanted to buy a three phase lathe or other piece of motor driven machinery, wouldn't it be easier to just change the motor for a single phase
unit?
John
Valid point John,and correct to a degree,but single phase motors are between 30-50% less efficient than the equivelent 3 phase units,so in my case i
would probably need a 3hp single phase motor,these aint cheap new,and hard to find second hand, then theres the hassle of mounting the thing.
I reckon i can build a rotary phase converter for peanuts,as large 3 phase motors ar worth nowt second hand.
ATB
Al.
i run a 7HP motor off a converter, i did have an old converter that you had to run an other motor to make up the 2phs, but, it was a pain . starting up one motor just to use the b/saw, s/grinder, lathe ect. 3ph machines are a lot cheaper to buy s/hand plus the motors are smaller and last a lot longer. didnt like starating the compressor under load it burnt the motor out
quote:
Originally posted by Liam
Just a thought - you could find the other two phases at your local sub-station, and run a couple of extension leads to your house. "Nobody would mind!".
Sorry, I didn't even take my coat off...
some big houses, pubs, shops have 3ph
some big houses, pubs, shops have 3ph
So do all lamposts,know what i'm saying?