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Handling of real power in a transmission system through a series FACTS controller requires ________ relationship between its voltage and the line current.

Handling of real power in a transmission system through a series FACTS controller requires ________ relationship between its voltage and the line current. Correct Answer any angle other than 900

Handling of real power in a transmission system through a series FACTS controller requires any angle other than quadrature (900) relationship between its voltage and the line current. This is because with quadrature (900) relationship between its voltage and the line current, a series FACTS controller can only supply or consume variable reactive power only. Under this quadrature condition, active power cannot be controlled by a series FACTS controller.

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