a power flow calculation. Due to the rapid change of the state of a power system the run of the application shall complete in minutes (up to 30) for the results to be useful. Typically only selected contingencies, mostly single ones with some double ones are considered to speed up the process. The selection of contingencies is using engineering judgment to choose the ones most likely to cause problems.

Credible contingencies

The foreseen and analyzed contingencies are called credible. Examples

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