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2 phases 480V between phases 250V to Earth - Split phase ??


m4tty

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most likely split phase - each phase is 180

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My understanding, and I may be wrong, is that it's fed from a centre tapped transformer (240-0-240) giving the readings you state.

As Andy says, used a lot in rural areas, 2 wire overhead supply (11kV) to a transformer, split phase out, keeps cable & transformer sizes down.

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