Combined DFT and Fuzzy Based Faulty Phase Selection and Classification in a Series Compensated Transmission Line

Table 8

Simulation results for evolving faults.

Simulated system data								Results obtained from the proposed CDFTF-based scheme
FT1	FT2	FR1 (Ω)	FR2 (Ω)	FL (km)	IT1 (s)	IT2 (s)	Time interval between IT1 and IT2 (ms)	Response time (ms)
								Phase A	Phase B	Phase C	Ground G
AG	AG	10	5	50	0.5000	0.5150	15	5.00	—	—	3.30
AG	ABG	10	20	100	0.5025	0.5125	10	4.10	6.60	—	2.50
AG	ABCG	20	50	160	0.5016	0.5276	26	5.00	8.20	5.70	3.40
BG	BCG	15	50	90	0.5100	0.5360	26	—	10.80	4.80	3.30
BG	ABCG	5	30	250	0.5158	0.5258	10	5.00	5.00	8.30	4.20
AB	ABG	50	50	10	0.5025	0.5105	8	4.10	10.80	—	4.50
BC	ABC	1	30	80	0.5058	0.5288	17	4.50	4.20	4.20	—
BC	BCG	30	50	200	0.5200	0.5370	17	—	6.60	6.60	3.80
BC	ABC	50	1	175	0.5016	0.5316	30	6.70	8.40	8.40	—

FT1, initial fault types; FT2, secondary fault types; FR1, initial fault resistance; FR2, secondary fault resistance; IT1, inception time for the initial fault type; IT2, inception time for the secondary fault type.