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

Table 4

First half extremes of the TZSC with bus bar faults.

Fault line	𝜃	𝑅/Ω	First half extremes of TZSC 𝑖0𝑧𝑗				𝐺0𝑧𝑚>0?	Results
			S1	S2	S3	S4
Bus bar	0°	20	−36.7519	−23.2945	−157.7988	−229.0609	Y	Bus bar
		200	−9.7630	−8.8730	−35.6166	−68.9971	Y	Bus bar
	150°	20	22.1604	20.3579	98.0850	150.7914	Y	Bus bar
		200	6.0437	5.8571	23.0452	44.5919	Y	Bus bar