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Critical Clearing Time Calculation


Which protection for my power system ?

The Critical Clearing Time is the maximum time during which a disturbance can be applied without the system losing its stability. The aim of this calculation is to determine the characteristics of protections required by the power system.


This analysis is based upon a dichotomic procedure which searches within a user-supplied starting interval.


Each step of the dichotomic search is performed by an automatic run of the main simulation engine generating stable and unstable states. The stability of the system is determined using the user specifications. The last stable and first unstable states can be fully analyzed using the Post-processing tools.