Variable shunt reactors for network stability control
The variable shunt reactor (VSR) is an interesting alternative for controlling network voltage stability when the need for reactive power compensation varies with time or when the grid is undergoing change. VSR benefits include: The voltage steps related to switching of fixed reactors are avoided; maintaining voltage stability during seasonal or daily load variations becomes easier; and the operation of the reactors can be coordinated with static var compensators (SVCs) to maximize dynamic capacity during failures.
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