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Table 2 Maximum and minimum fault currents under different splitting scenarios for varying fault conditions in the IEEE 14-bus system

From: Adaptive relay co-ordination using a busbar splitting approach for a system integrity protection scheme

Faulty bus Network configuration Splitting scenarios Max. fault current (kA) Min. fault current (kA)
11 Before splitting
Splitting bus 6
Normal 20.691 19.965
6→5,11
6′→12,13, L
20.578 19.864
6→11
6′→5,12,13, L, G
10.3 8.462
Splitting bus 10 10→11
10′→9, L
13.528 13.089
10 Before splitting Normal 26.871 20.735
Splitting bus 11 11→10
11′→6, L
18.813 14.503
Splitting bus 9 9→10
9′→4,7,14, L
10.312 7.912
9 Before splitting Normal 35.13 25.602
Splitting bus 10 10→9
10′→11, L
27.737 20.895
Splitting bus 14 14→9
14′→13, L
30.376 22.755
Splitting bus 7 7→9
7′→4,8
19.466 13.408
14 Before splitting Normal 19.104 14.707
Splitting bus 9 9→14
9′→4,7,10, L
9.918 6.984
Splitting bus 13 13→14
13′→12,6, L
11.8 8.776
13 Before splitting Normal 30.129 22.973
Splitting bus 14 14→13
14′→9, L
25.253 19.677
Splitting bus 12 12→13
12′→6, L
26.785 20.724
Splitting bus 6 6→13
6′→5,11,12, G, L
14.42 10.64
12 Before splitting Normal 19.823 16.465
Splitting bus 6 6→12
6′→5,11,13, G, L
10.413 8.661
Splitting bus 13 13→12
13′→6,14, L
13.003 11.119
1 Before splitting Normal 15.815 12.687
Splitting bus 2 2→1
2′→3,4,5, G, L
9.861 8.497
Splitting bus 5 5→1
5′→2,4,6, L
14.185 11.699
2 Before splitting Normal 19.195 14.036
Splitting bus 1 1→2
1′→5, G
15.128 10.95
Splitting bus 3 3→2
3′→4, L, G
16.768 12.693
Splitting bus 4 4→2
4′→7,9,5,3, L
17.685 13.303
4→2,5
4′→7,9,,3, L
16.792 12.937
Splitting bus 5 5→2
5′→1,4,6, L
17.963 13.392
3 Before splitting Normal 16.260 10.15
Splitting bus 4 4→3
4′→2,5,7,9,L
13.597 8.077
Splitting bus 2 2→3
2′→1,4,5, G, L
13.642 7.997
4 Before SPLITTING Normal 15.567 10.825
Splitting bus 2 2→4
2′→ 1,3,5, G, L
13.601 9.44
2→4,5
2′→1,3, G, L
12.246 8.404
Splitting bus 3 3→4
3′→2, L, G
12.825 9.031
Splitting bus 5 5→4
5′→1,2, 6, L
11.969 8.23
5 Before splitting Normal 13.361 10.133
Splitting bus 1 1→5
1′→2. G
11.481 8.738
Splitting bus 2 2→5
2′→1,3,4, G, L
11.242 8.658
2→4,5
2′→1,3,G,L
10.516 7.871
Splitting bus 4 4→5
4′→2,3,7,9, L
7.566 6.555
6 Before splitting Normal 60.274 43.293
Splitting bus 11 11→6
11′→10, L
54.965 40.422
Splitting bus 12 12→6
12′→13, L
59.596 43.244
Splitting bus 13 13→ 6
13′→ 12,14, L
57.132 42.754
13→6,12
13′→14, L
54.583 41.641