Research Article

Stepped Fault Line Selection Method Based on Spectral Kurtosis and Relative Energy Entropy of Small Current to Ground System

Table 7

SK relative energy entropy with different fault distances ( , ).

Fault lineSK relative energy entropy Entropy multiple Results
S1 S2 S3 S4

Overhead line S12.72671.26162.16652.82152.16 > 2S1
Cable line S41.61401.14553.98454.35581.41 < 2S4