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The four-point starter improves on the three-point starter by

  • A.dispensing with the starting resistance altogether
  • B.connecting the no-volt coil directly across the supply
  • C.removing the no-volt coil from the starter entirely
  • D.placing the overload coil in the field circuit instead

Answer: B

With the coil on its own branch, the field regulator can be set for a weak field without the hold failing. The price is that a break in the field circuit no longer releases the arm, so a separate field failure relay is needed.

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