## 3 Results
### Simulation N-2 Results
#### 3.2.1 2022 Winter Max Simulation Results  
During the simulation, 805 different combinations (consisting of two power transmission lines) were considered whose disconnection caused an increase in power line load  
Figure 8: Plots of load scenario in LF unit vs. number of 330 kV lines with system load of 5 GW and 6.5 GW, respectively. level to 50% or higher on at least one transmission line. The total number of possible combinations is 3003. In specific cases, one disconnection of two transmission lines can lead to an increase in the load/overload of more than one line. In total, 962 cases of exceeding the load level of 50% were identified during the simulation. This is normal because in pre-contingency mode the maximum load level was 46.1% and, after disconnecting two transmission lines, the other lines become more loaded/overloaded. Table 6 shows the results of ranked lines/elements by load ranges. The highest load level observed after disconnecting two lines was 84.8%/710 MVA (789%), while for comparison much lower values of 46.1%/363.8 MVA, respectively, were determined in pre-contingency mode. The load levels of the lines were divided into ranges in 10% increments to facilitate comparison of the results of different indicators. After static pre-contingency mode ranking, it was determined that the combined list identified the highest number of accurate combinations where both disconnected lines fall into the top 10% (i.e., above the 90 th percentile) of any of the three lists. Thus, in this way the power line selection algorithm is being checked. The simulation results with the load results are presented in Tables 7-9.  
not very accurate. The Ratio list results are similar to those provided by the combined set, so it is not beneficial to use the combined list in this case. Table 8 shows the results obtained with 20% (i.e., lines above 80 th percentile) highest ranked lines selected according to Sn, LF, Ratio factors and the combined (20%) set. The results of the combined (20%) set are most accurate when the load level on operating lines is higher than 70%. The list of ranked lines provided by the combined set consists of 30 transmission lines, which corresponds to 435 possible combinations. LF results are also very similar to the Ratio list when evaluating all loaded (>50%) lines, but not as accurate as the combined (20%) set. All the lists provided by using Sn, LF, Ratio indicators consist of 16 transmission lines, and the number of possible combinations is 120. The combined (20%) set was 3.6 times (435/120) larger than the LF, Sn, and Ratio lists. In total, 14 out of the 17 heaviest modes, when the load level is set higher than 70%, have been found. Sn list results are poor because the most powerful line in the network is not connected to any generator/load nodes. Sn list results are poor because the most powerful line in the network is not connected to any generator/load nodes. The following results were obtained by using lists containing 30% of the highest ranked lines according to Sn, LF, Ratio criteria and the combined (30%) set. The results provided by the combined (30%) SET are most accurate when the load level on operational lines is higher than 70%. The list of ranked lines provided by the combined set consists of 43 transmission lines, which corresponds to 903 possible combinations. Ratio results are similar (13 vs. 15) to those obtained by using the combined (30%) set when considering only the most loaded (>70%) lines. The lists of Sn, LF, Ratio consist of 24 transmission lines each, and the number of possible combinations is 276. The combined (30%) set is 3.3 times (903/276) larger than the Sn, LF, Ratio lists. In total, 15 out of the 17 heaviest modes, when the load level is higher than 70%, have been found. The results of the Ratio list are similar to those obtained by using the combined list. In total, 13 out of 17 cases have been found by using the Ratio list, so it is sufficient to use the Ratio list.