Critical Clearing Time

CCT. The maximum permissible duration of the fault.

Last Updated:  June 20, 2025

Version:  1.0.0

Generated:  November 06, 2025

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

Source:

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.