Ultra-High-Speed Travelling Wave Protection of Transmission Line Using Polarity Comparison Principle Based on Empirical Mode Decomposition

Table 4

Simulation results for different grounding resistance.

Fault location	Grounding resistance/Ω	M side		N side		Results
		λ	Direction	λ	Direction
F1	1	−0.4944	Forward	−0.8818	Forward	Internal
	100	−0.4829	Forward	−0.8802	Forward	Internal
	300	−0.4984	Forward	−0.8839	Forward	Internal
F2	1	0.9978	Reverse	−0.9438	Forward	External
	100	0.9963	Reverse	−0.8730	Forward	External
	300	0.8522	Reverse	−0.9033	Forward	External