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Boosters are basically:

  • A.Inductors
  • B.Capacitors
  • C.Transformers
  • D.Synchronous motors

Answer: C

Boosters are basically Transformers.

A booster in an AC system is a booster transformer: its secondary is connected in series with the line, so it adds (or subtracts) a controllable voltage to correct the voltage drop along a feeder.

Inductors and capacitors are used for reactive compensation, and the synchronous motor run on no load as a synchronous condenser is also a reactive power device. They influence voltage indirectly through reactive power, but none of them is a booster.

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