Critical Clearing Time

CCT. The maximum permissible duration of the fault.

Last Updated:  June 20, 2025

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# stability    # ieee    # ieee-task-force    # cigre

Definition in an IEEE Article by a Joint Task Force of IEEE and CIGRE

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The maximum permissible duration of the fault for which the subsequent system response remains stable. This portion of stability analysis requires the knowledge of actions of protective relaying.

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