On 02/27/2012 04:40 PM, Edward Ned Harvey wrote: >> From: [email protected] [mailto:[email protected]] >> On Behalf Of Luke S. Crawford >> >> On Mon, Feb 27, 2012 at 04:02:44PM -0800, [email protected] wrote: >>> the math in sine-wave AC circuits is odd, but a 208v circuit is exactly > 2 >>> 120v circuits > > Actually... I'm quite sure 120V is a single phase (relative to ground), and > 240V are just two 120V circuits that are directly out of phase with each > other (2-phase) and 208V is three 120V signals that are each 120deg out of > phase with each other. > > 120V = 1 phase > 240V = 2 phase > 208V = 3 phase
It all depends on how you measure the voltage. 240V split-phase is 120V phase-to-ground and 240V phase-to-phase. 208V can come as single-phase, and is 208V phase-to-phase and 120V phase-to-ground. -- -- -- Skylar Thompson ([email protected]) -- http://www.cs.earlham.edu/~skylar/ _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
