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A cumulatively compounded generator is described as level compounded when

  • A.the full-load voltage exceeds the no-load voltage
  • B.the full-load voltage is below the no-load voltage
  • C.the series winding is disconnected entirely
  • D.the full-load voltage equals the no-load voltage

Answer: D

Choosing the series turns so that the rise from added flux exactly offsets the resistive drop gives a flat characteristic. More turns give over-compounding and a rising characteristic, which suits a long feeder with its own drop.

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