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Table 2 Set of the critical contingencies of IEEE 14-bus and Algerian 114-bus systems

From: Power system voltage instability risk mitigation via emergency demand response-based whale optimization algorithm

Power systemContingency N°Line outageVSI
IEEE 14-bus1
2
3
4
5
Intact condition
1–2
2–3
5–6
7–9
4–7
-
0.0381
0.6468
0.6753
0.6857
0.7057
0.7573
Algerian 114-bus1
2
3
4
5
Intact condition
63–66
81–90
85–87
81–82
87–100
-
0.1261
0.1720
0.2438
0.2950
0.3359
0.3674