A set of written step-by-step practices or procedures that may be automatically implemented, or manually implemented by the system operator within a specified time frame, to maintain the operational integrity of the interconnected electric systems when specific anticipated contingencies occur. These actions or system adjustments may be implemented in anticipation of or following a system contingency (facility outage) or system disturbance, and include, among others, opening or closing switches (or circuit breakers) to change the system configuration, the redispatch of generation, and the implementation of Direct Control Load Management or Interruptible Demand programs.
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