The attached script should be copied to the Scripts library of your project.

Usage:

- Select one or more lines in a diagram or in the Network Model Manager.

- Right click, select "Execute Script" and select the script "Critical Fault Screening" from the list.

- Configure the Basic Options page of the script.

- Execute the script.

The script will simulate for each selected line a range of faults with different clearing times. The fault is cleared by switching the line off. The script will increase the fault clearing time until a generator falls out of step or till the maximum fault time is reached (this time is configured in the script).