A positive-sequence current based directional relaying approach for CCVT subsidence transient condition

Protection and Control of Modern Power Systems

Table 2 Results for b-g in forward side with PFSC in CCVT secondary, SIR = 30, fault resistance =100Ω

Fault location in km	Fault inception angle	Method-1	Method-2	Method-3	Proposed method
Fault location in km	Fault inception angle	ϕ ₁ (rad)	ϕ ₂ (rad)	ϕ ₃ (rad)	θ (rad)
5	0°	1.474	0.0221	−2.783	−0.053
25	0°	1.675	0.2674	−2.365	−0.107
100	0°	1.680	0.0008	−2.429	−0.153
200	0°	1.972	0.6303	−2.257	−0.108
245	0°	1.836	0.7106	−2.743	−0.262
5	45°	1.843	0.4704	2.994	−0.140
25	45°	1.852	0.5514	−3.059	−0.170
100	45°	1.676	0.5335	−2.204	−0.177
200	45°	1.702	0.5531	−1.915	−0.133
245	45°	1.717	0.4896	−2.615	−0.194
5	90°	1.691	0.3730	−3.051	−0.127
25	90°	1.575	0.3495	−2.192	−0.070
100	90°	1.511	0.3928	−1.887	−0.090
200	90°	1.999	0.8744	−2.838	−0.259
245	90°	1.659	0.4606	2.902	−0.228
5	180°	1.235	0.0187	2.572	−0.057
25	180°	1.541	0.3977	2.790	−0.135
100	180°	1.518	0.4808	−2.490	−0.181
200	180°	1.706	0.6632	−2.267	−0.155
245	180°	1.779	0.5900	2.278	−0.172