Toshiba GRL100-701B Instruction Manual page 52

(*1) Ohmic values shown in the parentheses are in the case of 1 A rating. Other ohmic values are in the
case of 5 A rating.
(*2) Valid only when mho-based characteristic is selected by ZS-C and ZG-C.
(*3) Valid only when quadrilateral characteristic is selected by ZS-C and ZG-C.
The following elements have fixed setting values or their settings are interlinked with other
elements listed above. So no setting operation is required.
Element Setting
Z1BS
Fixed to 1.5Ω
(Fixed to 7.5Ω)(*1)
BFRS θ Fixed to 75°
Z4BS
Fixed to 1.5Ω
(Fixed to 7.5Ω)
Z4S θ(*2) Interlinked with Z3S θ
Z4BS θ(*3) Interlinked with ZBS θ
BRRS θ Fixed to 75°
BRLS Interlinked with BRRS
BRLS θ Interlinked with BFLS θ Angle of reverse left blinder BRLS
BFRG θ Fixed to 75°
Z4G θ(*2) Interlinked with Z3G θ
Z4BG θ(*3) Interlinked with ZBG θ
BRRG θ Fixed to 75°
BRLG Interlinked with BRRG
BRLG θ Interlinked with BFLG θ Angle of reverse left blinder BRLG
(*1) Ohmic values shown in the parentheses are in the case of 1 A rating. Other ohmic values are in the
case of 5 A rating.
(*2) Valid when mho-based characteristic is selected by ZS-C and ZG-C.
(*3) Valid when quadrilateral characteristic is selected by ZS-C and ZG-C.
In order to coordinate with the distance protection provided for adjacent lines, care is required in
setting the reach and timer setting. Figure 2.3.1.8 shows an ideal zone and time coordination
between terminals.
Time
T3
T2
Zone 1
T1
A
Zone 2
Zone 3
Figure 2.3.1.8 Typical Zone/Time Coordination among A-D Terminals
Remarks
Z1 reverse offset reach
Angle of forward right blinder BFRS
Z4 offset reach. This is also the offset reach for ZRS. However, in these cases the
offset reach is limited by the Z1S setting when ZRS is used for backup tripping.
Characteristic angle of zone 4 mho element
Angle of Z4 offset directional element
Angle of reverse right blinder BRRS
Reverse left blinder
Angle of forward right blinder BFRG
Characteristic angle of Z4 mho element
Angle of offset directional element
Angle of reverse right blinder BRRG
Reverse left blinder
Zone 2
Zone 1
B
Zone 1
Zone 2
Zone 3
 51 
Zone 3
Zone 2
Zone 1
C
Zone 1 Zone 1
Zone 2
6 F 2 S 0 8 5 0
Zone 3
Zone 2
D
T1
T2
T3