Toshiba GRL100-701B Instruction Manual page 131

Element Range
TS2R 5.0 – 300.0s
TS3R 5.0 – 300.0s
TS4R 5.0 – 300.0s
TSUC 0.1 – 10.0s
[ARC – M] Disabled/SPAR/TPAR/
SPAR & TPAR/MPAR2/MPAR3/
EXT1P/EXT3P/EXTMP
[ARCDIFG] OFF/ON
[ARC-BU] OFF/ON
[ARC-EXT] OFF/ON
[ARC – SM] OFF/S2/S3/S4
[ARC-SUC] OFF/ON
[MA-NOLK] FT/T/S+T
[VCHK] OFF/LB/DB/SYN
[VTPHSEL] A/B/C
[VT – RATE] PH/G / PH/PH
[3PH – VT] BUS/LINE
[UARCSW] P1/P2/P3
(∗) If this switch is not used for PLC setting, it is invalid.
"VT" is VT ratio setting of protection, and "VTs1" is VT ratio setting of a reference voltage
input for voltage and synchronism check element as shown in Figure 2.16.9.1.
In a voltage setting, set "SY1UV", "SY1OV", "OVB", "UVB", "OVL1" and "UVL1" based on
the VT rating for voltage and synchronism check. (When a voltage rating between line VT and
busbar VT is different as shown in Figure 2.15.2.10, the voltage input from "VT" is matched to
the rating of "VTs1" using the setting of "VT" and "VTs1".)
Busbar
Busbar VT
Figure 2.15.2.10 VT and VTs1 Ratio Setting for Busbar or Line Voltage
To determine the dead time, it is essential to find an optimal value while taking into
consideration the de-ionization time and power system stability factors, which normally
contradict each other.
Normally, a longer de-ionization time is required for a higher line voltage or larger fault current.
For three-phase autoreclose, the dead time is generally 15 to 30 cycles. In single-phase
autoreclose, the secondary arc current induced from the healthy phases may affect the
de-ionization time. Therefore, it is necessary to set a longer dead time for single-phase
autoreclose compared to that for three-phase autoreclose.
Step Default
0.1s 30.0s
0.1s 30.0s
0.1s 30.0s
0.1s 3.0s
SPAR & TPAR
OFF
OFF
OFF
OFF
OFF
FT
LB
A
PH/G
LINE
(P1)(∗)
CB
Line
X
Line VT
 130 
Remarks
Second shot reset time
Third shot reset time
Fourth shot reset time
Autoreclose success check time
Autoreclose mode
High-resistance fault autoreclose
Backup trip autoreclose
External start
Multi – shot autoreclose mode
Autoreclose success checking
Control under NON-LINK in MPAR
Energizing direction
Phase of reference voltage
VT rating
Location of three – phase VTs
User ARC switch for PLC
GRL100
VT setting
For line differential
protection
VL
VTs1 setting
Reference voltage
VB
for voltage and
synchronism check
6 F 2 S 0 8 5 0