A Novel Fault Line Selection Method Based on Improved Oscillator System of Power Distribution Network

Table 7

High resistance to ground fault result.

Fault line	Fault situation	Distance of phase trajectory	𝑆1	𝑆2	𝑆3	𝑆4	Selection result
𝑆1	(0°, 1500 Ω)	𝑀𝐷𝐶	0.0546	1.4653	1.4695	1.4687	Failure
		𝐷𝐴	0.0027	0.0076	0.0362	0.0376
	(0°, 1700 Ω)	𝑀𝐷𝐶	0.1191	0.0052	1.4749	1.4676	Failure
		𝐷𝐴	0.0025	0.0017	0.0342	0.0548
	(0°, 1800 Ω)	𝑀𝐷𝐶	0.0014	1.4679	1.4679	1.4672	Failure
		𝐷𝐴	0.0001	0.0010	0.0175	0.0402
	(0°, 1900 Ω)	𝑀𝐷𝐶	0.0114	1.4658	1.4704	1.4675	Failure
		𝐷𝐴	0.0017	0.0060	0.0241	0.0271
	(0°, 2000 Ω)	𝑀𝐷𝐶	0.0569	0.0007	0.0550	1.4669	Failure