Split-phase electric power - University of Utah

3-wire, single-phase, mid-point neutral. system. In North America, the high leg delta system allows single-phase 120 V loads and 240 V three-phase loads both to be served by the same three-phase, four-wire distribution system. Connections. A transformer supplying a 3-wire distribution system has a single-phase input (primary) winding. ................
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