Autoreclose Output Signals - Toshiba GRL100-701B Instruction Manual

In three-phase autoreclose, if the voltage and synchronism check does not operate within the
period of time set on the on-delay timer TRR, which is started at the same time as the dead time
counter TTPR1 is started, reclosing is not performed and three-phase autoreclose is reset to its
initial state. Therefore, for example, the TRR is set to the time setting of the TTPR1 plus 100ms.
The TEVLV determines the possibility of three-phase reclosing for an evolving fault.
When the TEVLV is set to the same setting as the TSPR, three-phase reclosing is performed for
all evolving faults. As the setting for the TEVLV is made shorter, the possibility of three-phase
reclosing for an evolving fault becomes smaller and that of three-phase final tripping becomes
larger.
For the two-breaker autoreclose, the following additional settings are required.
Element Range
VTs2 1 - 20000
TSPR2 0.1 – 10.0s
TTPR2 0.1 – 10.0s
TMPR2 0.1 – 10.0s
TRDY2 5 – 300s
SYN2
θ
5 – 75°
SY2
SY2UV 10 – 150V
SY2OV 10 – 150V
OVL2 10 – 150V
UVL2 10 – 150V
TSYN2 0.01 – 10.00s
TLBD2 0.01 – 1.00s
TDBL2 0.01 – 1.00s
TW2 0.1 – 10.0s
[ARC-CB] ONE/O1/O2/L1/L2
[ARC-CCB] TPAR/MPAR/OFF
[VCHK] OFF/LB1/LB2/DB/SYN
Note :
[ARC-CB]
reclose commands are output only for CB1(bus CB).

2.15.3 Autoreclose Output Signals

The autoreclose scheme logic has two output reclosing signals: ARC1 and ARC2. ARC1 is a
reclosing signal for single breaker autoreclose or a reclosing signal for the busbar breaker in a
two-breaker autoreclose scheme.
ARC2 is the reclosing signal for the center breaker of the two-breaker autoreclose scheme.
The assignment of these reclosing signals to the output relays can be configured, which is done
using the setting menu. For details, see Section 3.2.2. For the default setting, see Appendix D.
Step
1
0.1s
0.1s
0.1s
1s
1°
1V
1V
1V
1V
0.01s
0.01s
0.01s
0.1s
is set to " " only when the relay is applied to one-breaker system. Trip and
ONE
 131 
Default Remarks
2000 VT ratio for voltage and synchronism checkSYN2
0.1s Dead time for single-phase autoreclode of follower
breaker
0.1s Dead time for three-phase autoreclode of follower
breaker
0.1s Dead time for multi-phase autoreclode of follower
breaker
60s Reclaim time of follower breaker
Synchronism check
30°
83V
51V
51V Live line check
13V Dead line check
1.00s Synchronism check time
0.05s Voltage check time
0.05s Voltage check time
0.2s Reclosing signal output time
L1 Two breaker autoreclose mode
MPAR Center breaker autoreclose mode
LB1 Energizing direction
6 F 2 S 0 8 5 0