Fault Condition | Impedance seen by the relay RA | Performance of RA without proposed methodology | |
---|---|---|---|
Zone of fault detection is? | Is detected zone correct? (Y/N) | ||
LLG Fault at 50 km | 3.937 ∠ 63.990 | Zone 1 | Y |
LLL Fault at 50 km | 8.436 ∠ 22.50 | Zone 1 | Y |
LG Fault at 150 km | 20.52 ∠ 45.070 | Zone 1 | Y |
LL Fault at 150 km | 16.296 ∠ 43.510 | Zone 1 | Y |
LL Fault at 250 km | 38.814 ∠ 68.430 | Zone 2 | N |
LLL Fault at 250 km | 39.5 ∠ 67.690 | Zone 2 | N |
LLG Fault at 300 km | 52.864 ∠ − 273.090 | No Zone is detected | N |
LLL Fault at 300 km | 52.268 ∠ 65.3030 | No Zone is detected | N |
LG Fault at 350 km | 79.285 ∠ 68.280 | No Zone is detected | N |
LLG Fault at 350 km | 80.335 ∠ 68.630 | No Zone is detected | N |