John T, I always appreciate and respect your knowledge on all things electrical. I agree with everything you state about circuit balancing. I could be wrong, and I am not an E E, but it is my understanding that typical split phase 240 residential service does not have 2 phases 180 out, but a single phase of the secondary transformer winding tapped at both ends (each end is a hot leg) and center tapped (neutral). This is why it is typically referred to as 240 v split or single phase. I am going to paste an explanation of this from the website "all about circuits". I am certainly willing to be corrected if I am wrong.
Split-phase Power System
Instead of a single 240-volt power supply, we use two 120 volt supplies (in phase with each other!) in series to produce 240 volts, then run a third wire to the connection point between the loads to handle the eventuality of one load opening. This is called a�split-phase�power system. Three smaller wires are still cheaper than the two wires needed with the simple parallel design, so we�re still ahead on efficiency. The astute observer will note that the neutral wire only has to carry the�difference�of current between the two loads back to the source. In the above case, with perfectly �balanced� loads consuming equal amounts of power, the neutral wire carries zero current.
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Today's Featured Article - A 1937 John Deere Unstuck - by Gary Hickman. Here is my story of how I got the pistons out of a 1937 JD B that the engine had been stuck for about 14 years: About 12 years ago my Dad gave me one of the tractors I ran as I was growing up on our farm in central Nebraska. The engine on this tractor, a 1937 John Deere "B", had been stuck for 2 years before he gave it to me. This last spring (1999) I hauled the tractor to our 2 acre lot in St. Libory Nebraska where it joined my antique machinery collection, at that time a 1929 Caterpillar T
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