Table 9 PPS behavior under dissimilar transmission line length (scenario 18).
From: Directional protection scheme using impedance approach for transmission lines
The considered conditions | Results | ||||
|---|---|---|---|---|---|
Line length (Km) | Fault types | Fault position | Resistance (Ω) | Z matrix value | Direction result |
70 | AG | F | 1 | -2.4 | F |
140 | AG | R | 40 | 2.5 | R |
140 | ABG | F | 25 | -3.8 | F |
200 | ABG | R | 20 | 3.2 | R |
200 | AB | F | 100 | -2.8 | F |
80 | ABCG | R | 35 | 2.9 | R |
100 | ABCG | F | 25 | -4.1 | F |
120 | CG | F | 0.5 | -3.7 | F |
180 | CG | R | 1 | 3.8 | R |
160 | BCG | F | 50 | -4.6 | F |
70 | BCG | R | 100 | 4.8 | R |
80 | AC | F | 0.5 | -3.4 | F |
200 | AC | R | 0.5 | 3.5 | R |
80 | ABCG | F | 13 | -4.2 | F |
