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 |