129
6
F
2
S
0
8
5
0
When [ARC-CCB] is set to "MPAR", the center breaker is also reclosed in the multi-phase
autoreclose mode at the time of the TMPR2 setting.
When [ARC-CCB] is set to "OFF", autoreclose does not start for the center breaker.
The scheme switch [ARC-CCB] used in single-phase autoreclose and single- and three-phase
autoreclose is invalid when multi-phase autoreclose is selected as a reclose mode.
The interlinking check scheme for two-breaker autoreclose is shown in Figure 2.15.2.5. Local
interlink check signals CBDS-A, -B and –C are originated by ORing the busbar and center
breaker conditions.
The scheme switch [ARC-SUC] is used to check the autoreclose succeeds. If all three phase CB
contacts have been closed within TSUC time after ARC shot output, it is judged that the
autoreclose has succeeded (AS). If not, it is judged that the autoreclose has failed (AF), and
becomes the final tripping (FT).
The relay provides the user configurable switch [UARCSW] with three-positions (P1, P2, P3) to
be programmed by using PLC function. Any position can be selected. If this switch is not used
for the PLC setting, it is invalid. The setting example is shown in Appendix S.
2.15.2.3 Setting
The setting elements necessary for the autoreclose and their setting ranges are shown in the table
below.
Element Range
Step Default Remarks
VT
1 - 20000
1
2000
VT ratio for line differential protection
VTs1
1 - 20000
1
2000
VT ratio for voltage and synchronism check
TSPR1
0.01 – 10.00s
0.01s
0.80s
Dead time for single-phase autoreclose and
multi-phase autoreclose
TTPR1
0.01 – 100.00s
0.01s
0.60s
Dead time for three-phase autoreclose
TMPR1
0.01 – 100.00s
0.01s
0.80s
Dead time for multi-phase autoreclose
TRR
0.01 – 100.00s
0.01s
2.00s
Autoreclose reset time
TEVLV
0.01 – 10.00s
0.01s
0.30s
Dead time reset for evolving fault
TRDY1
5 – 300s
1s
60s
Reclaim time
SYN1
Synchronism
check
SY1
θ
5 – 75°
1°
30°
SY1UV
10 – 150V
1V
83V
SY1OV
10 – 150V
1V
51V
OVB
10 – 150V
1V
51V
Live bus check
UVB
10 – 150V
1V
13 V
Dead bus check
OVL1
10 – 150V
1V
51V
Live line check
UVL1
10 – 150V
1V
13V
Dead line check
TSYN1
0.01 – 10.00s
0.01s
1.00s
Synchronism check time
TLBD1
0.01 – 1.00s
0.01s
0.05s
Voltage check time
TDBL1
0.01 – 1.00s
0.01s
0.05s
Voltage check time
T3PLL
0.01 – 1.00s
0.01s
0.05s
Line three voltage check time
TW1
0.1 – 10.0s
0.1s
0.2s
Reclosing signal output time
TS2
5.0 – 300.0s
0.1s
20.0s
Second shot dead time
TS3
5.0 – 300.0s
0.1s
20.0s
Third shot dead time
TS4
5.0 – 300.0s
0.1s
20.0s
Fourth shot dead time
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