Don't start with me .....

Bob Swinney
"Martin H. Eastburn" wrote in message
...
Bob -
there is 180 degrees phase between the two lines.
It isn't DC And the phase can be -90 and +90. Depends on the reference .


Martin Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
NRA LOH, NRA Life
NRA Second Amendment Task Force Charter Founder



Robert Swinney wrote:
Carl,

Where have you been all the years and through all the posts on RCM
disclaiming 240V 2-PHASE current? There is no such thing available in
the ordinary US residence. 240v SINGLE PHASE current is what just about
all residences have in the US. It comes in on 3 wires, one of them being
the center tap of the transformer. It is center tapped to provide 240
volts across the entire winding and 2 sides of 120V each.

Try not to confuse Iggy by giving him erronious information - he has
enough trouble with the real facts.

Bob Swinney


"carl mciver" wrote in message
ink.net...

"Ignoramus26924" wrote in message
...
| I have a Hobart CyberTig 200 DC-S welder. It is 3 phase, however, the
| fan motor in it is single phase. (110V). I verified that the welder
| powers up on 3 phase 240V. (after I rewired it).
|
| My question is, is it safe to run it on single phase 240V (provided
| that I select the right wires to power signal transformer and fan). If
| so, what would be a safe reduced output amperage for welding. For 3
| phase, it is rated 200 A continuous, I believe.

Since you have the schematics, does it explain how to hook it up to
240
two phase? I think that if you don't hit the full current capacity of
the
welder, you ought to be okay. Make sure you have the wall current
required
to drive it on two phase, though. The manual ought to discuss the
derating.
If it doesn't show that its possible (I think unlikely) then your RPC
ought to drive it with the derating considered.





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