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A Scott connection is used to obtain

  • A.a higher voltage from a lower one without two windings
  • B.two single-phase supplies balanced across a three-phase system
  • C.a neutral point from a delta-connected supply
  • D.a phase shift of thirty degrees without a delta winding

Answer: B

Two specially proportioned transformers give two single-phase outputs in quadrature that load the three-phase system evenly, which suits electric traction. Without such an arrangement a single-phase traction load unbalances the supply badly.

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