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Consider a system consisting of a synchronous generator working at a lagging power factor, a synchronous motor working at an overexcited condition and a directly grid-connected induction generator. Consider capacitive $VAr$ to be a source and inductive $VAr$ to be a sink of reactive power. Which one of the following statements is TRUE?

  1. Synchronous motor and synchronous generator are sources and induction generator is a sink of reactive power.
  2. Synchronous motor and induction generator are sources and synchronous generator is a sink of reactive power.
  3. Synchronous motor is a source and induction generator and synchronous generator are sinks of reactive power.
  4. All are sources of reactive power.
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