Research Article
Stepped Fault Line Selection Method Based on Spectral Kurtosis and Relative Energy Entropy of Small Current to Ground System
Table 2
of each line with S
1 fault.
| Initial angle
| Grounding resistance | Characteristic frequency (Hz) | | / | Overhead line S1 | Overhead line S2 | Hybrid line S3 | Cable line S4 |
| | 0° | 20 | 585.9 | 390.6 | 585.9 | 585.9 | | 200 | 3320 | 2344 | 3320 | 3125 | | 150° | 20 | 585.9 | 390.6 | 585.9 | 585.9 | | 200 | 3320 | 2344 | 3320 | 3125 |
|
|
