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Alton, Ia | First, whats a pum? :)
You need 220 from the transformer. Another post references 'another 110 leg', that is sorta incorrect. Another 110 feed on the same side as your first one will get you nowhere, actually pump will not run. You need another feed from the other phase, ie it's 180 degress off on the sinusoidal alternating current wave.
As far as running 110 vs. 220, there really is not a huge difference in operating cost. You pay for watts, and watts = volts * amps, so if you double the voltage and half the amps, you gain nothing. The minor losses you may see are in the transmission losses, which are figured as amps*amps*resistance in wire, so if you cut the amps, you do cut the losses, but for your situation this loss is meaningless. Might be a few cents per year. Not much.
The first thing I'd do is check the pump, most can be wired 110 or 220. If not, then I'd try to return it and get a 110. Unless you pump A LOT of water, you'll never save enough to pay for the electrician. | |
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Help wiring a new pump in the well
