Table 2 Operation time of CON and MOD relay with the presence of SSSC and considering the set-delay times of zones
From: Active power based distance protection scheme in the presence of series compensators
| Â | Fault distance from R B | 155 km | 295 km | 400 km | Â | |||
|---|---|---|---|---|---|---|---|---|
Method | CON | MOD | CON | MOD | CON | MOD | ||
A–G Fault | V Ref  = 0.1 p.u | Not Oper | 0 + 0.415 | Not Oper | 0.5 + 0.433 | Not Oper | 1.0 + 0.437 | Operation time (Sec) of relay |
V Ref  = 0.3 p.u | Not Oper | 0 + 0.414 | Not Oper | 0.5 + 0.422 | Not Oper | 1.0 + 0.420 | ||
V Ref  = - 0.1 p.u | Not Oper | 0 + 0.415 | Not Oper | 0.5 + 0.416 | Not Oper | 1.0 + 0.443 | ||
V Ref  = - 0.3 p.u | 1 + 0.128 | 0 + 0.416 | Not Oper | 0.5 + 0.416 | Not Oper | 1.0 + 0.504 | ||
A–B Fault | V Ref  = 0.1 p.u | 0.5 + 0.114 | 0 + 0.412 | 1.0 + 0.115 | 0.5 + 0.414 | 1.0 + 0.112 | 1.0 + 0.403 | |
V Ref  = 0.3 p.u | 0.5 + 0.120 | 0 + 0.426 | 1.0 + 0.114 | 0.5 + 0.422 | Not Oper | 1.0 + 0.418 | ||
V Ref  = - 0.1 p.u | 0.5 + 0.116 | 0 + 0.418 | 1.0 + 0.116 | 0.5 + 0.404 | 1.0 + 0.112 | 1.0 + 0.513 | ||
V Ref  = - 0.3 p.u | 0.5 + 0.121 | 0 + 0.418 | 1.0 + 0.114 | 0.5 + 0.406 | Not Oper | 1.0 + 0.407 | ||