Pinging Bruce for Clarification
Gunner wrote:
On Fri, 07 Sep 2007 08:40:40 -0500, "Pete C."
wrote:
Gunner wrote:
On Thu, 06 Sep 2007 22:34:44 -0400, Stuart Wheaton
wrote:
Ken Sterling wrote:
Bruce (or anyone qualified).....
Three phase power ----- isn't each leg 120 degrees from the others?
Single phase power - 220v - isn't each leg 180 degrees from the other?
If the above is correct (and I'm hoping I understand it correctly) it
would stand to reason, that if you needed to hook up a 220v single
phase machine and you had 3 phase available at that location you
could, (and I am not saying it's correct) connect to two of the three
phases and run the machine, even tho the sine waves wouldn't be 180
out, it probably wouldn't hurt anything. Am I correct in this
assumption??? Any and all comments welcome
Thanks.
Ken.
Three phase is usually 208/120. 208 volts between phases and 120 volts
leg to ground. Many machines have a 200 volt tap for this situation.
Stuart
Its usually 240/120.
Do the math
Gunner
240 for delta service, but you're more likely to find 208/120 wye
service in most places.
Not in Southern California, if my 10+ yrs of machine tool repair is
any indicator.
Gunner
All of the commercial / light industrial places I've been to had 208/120
Y service. Only seen 240 delta in heavy industrial settings. Based on
some 5 yrs of CNC service in the northeast.
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