Distribution system
Source
Split-phase 3-wire non-grounded neutral
3-phase open star 3-wire non-grounded neutral
Split-phase 3-wire
(L1, L2 and N)
3-phase high leg delta 3-wire non-grounded neutral
3-phase open high leg delta 3-wire non-grounded
neutral
Split-phase 4-wire grounded neutral
3-phase open star 4-wire grounded neutral
Split-phase 4-wire
(L1, L2, N and earth)
3-phase high leg delta 4-wire grounded neutral
3-phase open high leg delta 4-wire grounded neutral
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