Research Article
Stepped Fault Line Selection Method Based on Spectral Kurtosis and Relative Energy Entropy of Small Current to Ground System
Table 8
SK relative energy entropy with different fault phases (
,
).
| | Fault line | Fault phase | SK relative energy entropy | Entropy multiple | Results | |
S1 |
S2 |
S3 |
S4 |
| | Overhead line S1 | B | 3.0161 | 1.3442 | 1.7646 | 2.9313 | 2.24 > 2 | S1 | | C | 2.1819 | 0.4247 | 1.0312 | 1.4207 | 5.14 > 2 | S1 |
| | Cable line S4 | B | 0.6462 | 0.7357 | 3.5225 | 5.2236 | 1.14 < 2 | S4 | | C | 2.0681 | 3.6244 | 1.2483 | 1.4300 | 1.75 < 2 | S4 |
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