03-12-2008, 11:36 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,577
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service ground etc.
here's a diagram of a typical service from the pole to your house. a single phase pole top transformer has one high side lead connected to the 4160 distribution line at the top of the pole. the secondary of the transformer with terminals known as X1 & X3 are the 240 volt secondary. The X0 is the midpoint of the transformer windings and forms a neutral leg. So from each X1 to neutral you get 120 volts. X3 to neutral you get 120 volts. Across X1 & X3 you get 240 volts.
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