Table 8 Response of protection scheme for different types of fault with CT saturation
Fault type | La (actual location) in km | Inception angle (Φi) in degree | Fault resistance (ohm) | Output of classifier | Relay operation time (ms) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
a | b | c | d | e | f | g | |||||
fg | 1 | 0° | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 7.497 |
aeg | 1 | 0° | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 7.497 |
abfg | 1 | 0° | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 5.831 |
abcdg | 1 | 0° | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 7.497 |
abcdeg | 1 | 0° | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 7.497 |
abcdefg | 1 | 0° | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 6.664 |
ab | 1 | 0° | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 10.829 |
abc | 1 | 0° | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 5.831 |
abde | 1 | 0° | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 8.330 |
abcde | 1 | 0° | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 5.831 |
abcdef | 1 | 0° | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 5.831 |