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of both circuits together is less than half that of one circuit. For example, a section of a line may be (top-to-bottom) phases A-B-C on the left, also phases C'-B'-A' on the right. The next section may be B-C-A on the left, also A'-C'-B' on the right. Therefore, the rotation on each side of the
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Double-circuit lines are usually set up with conductors of the same phase placed opposite each other. This reduces the reactance due to mutual
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Here, on the right the phases are rotated; on the left, two phases are swapped, thus the rotation sense changed.
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between phases of a circuit over time, reducing the problem of one conductor carrying more current than others.
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Transposition tower. On the right side, the phases are rotated upward, on the left side downward.
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Please help update this article to reflect recent events or newly available information.
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268:"Why are Conductor Positions Swapped in a Transposition Tower?"
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Transposition in the span field of a 420 kV-line in Sweden
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that changes the relative physical positions of the
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