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Table 5 A Comparison of proposed DSE scheme with conventional differential current scheme (DCS) and distance relaying scheme (DRS)

From: A critical fault detection analysis & fault time in a UPFC transmission line

Fault case in relation to effect of parameters of the line. Proposed DSE scheme DCS DRS
Effect of Rf Works perfectly Fails sometime under /over reach
Effect of SI Works perfectly Fails some time under /over reach
Effect of UPFC (Vse and ɵse) Affected in Small variation Affected large variation under /over reach
Reversing power flow Works perfectly Fails sometime Fails sometime
Multi-phase fault Works perfectly Fails sometime Fails sometime
External fault Works perfectly Fails sometime Fails sometime