Toshiba GRL100-701B Instruction Manual page 415

Tables 1 and 2 show operations of the multi-phase autoreclose for different faults. The operations
of the autoreclose depend on the settings of [ARC-M] and [MA-NOLK].
Cases 1 to 3 show the case when one of the double circuit lines is out of service. In MPAR2 and
[MA-NOLK]=FT, only case 1 results in single-phase tripping and multi-phase reclosing. Other
cases result in three-phase final tripping. In MPAR2 and [MA-NOLK]=FT or S+T, case 1 results
in single-phase tripping and multi-phase reclosing, and cases 2 and 3 result in three-phase tripping
and three-phase reclosing. In MPAR3 and [MA-NOLK]=FT, all cases result in three-phase final
tripping. In MPAR3 and [MA-NOLK]=T, all cases result in three-phase tripping and three-phase
reclosing. In MPAR3 and [MA-NOLK]=S+T, case 1 results in single-phase tripping and
single-phase reclosing, and cases 2 and 3 result in three-phase tripping and three-phase reclosing.
In cases 4, 6, 7, 10 and 11, three different phases remain in the power transmission state, so both
MPAR2 and MPAR3 perform fault phase(s) tripping and reclosing.
In case 5, 8, 12 and 13, two different phases remain in the power transmission state, so MPAR2
performs fault phase(s) tripping and multi-phase reclosing. In MPAR3 and [MA-NOLK]=FT, all
cases result in three-phase final tripping. In MPAR3 and [MA-NOLK]=T, all cases result in
three-phase tripping and three-phase reclosing. In MPAR3 and [MA-NOLK]=S+T, single- or
three-phase tripping and single- or three-phase reclosing is performed according to fault phase(s).
In cases 9, 14 and 15, the number of remaining different phases is less than two, so the operations
of the autoreclose depends on only the [MA-NOLK] setting. In [MA-NOLK]=FT, all cases result
in three-phase final tripping. In [MA-NOLK]=T or S+T, all cases result in three-phase tripping
and three-phase reclosing.
Fault phase
Case #1 line
No. A B C A
× 
1
× × 
2
× × × 
3
×
4
5 × ×
× ×
6
×
7
× × ×
8
× × ×
9
10 × × ×
× ×
11
× ×
12
× × × ×
13
× × × ×
14
× × × ×
15
×: Fault,
MPAR: Multi-phase reclosing
SPAR: Single-phase reclosing
1 φ T: single-phase tripping
3 φ T: three-phase tripping
Table M-1 Reclosing in MPAR2 ([ARC-M]=M2 setting)
Tripping and Reclosing (Tripping mode → Reclosing mode)
#2 line [MA-NOLK] = FT setting
B C #1 line
 
1φT→MPAR
 
3φFT
 
3φFT
1φT→MPAR
1φT→MPAR 1φT→MPAR
2φT→MPAR
×
1φT→MPAR 1φT→MPAR
2φT→MPAR 1φT→MPAR
×
3φFT 3φFT
3φT→MPAR
×
2φT→MPAR 1φT→MPAR
× ×
2φT→MPAR 2φT→MPAR
3φT→MPAR 1φT→MPAR
×
3φFT 3φFT
× ×
3φFT 3φFT
: The line is out of service
TPAR: Three-phase reclosing
3 φ FT: three-phase final tripping
2 φ T: two-phase tripping
 414 
[MA-NOLK] = T setting
#2 line #1 line

1φT→MPAR

3φT→TPAR

3φT→TPAR
1φT→MPAR
1φT→MPAR 1φT→MPAR
2φT→MPAR
1φT→MPAR 1φT→MPAR
2φT→MPAR 1φT→MPAR
3φT→TPAR 3φT→TPAR
3φT→MPAR
2φT→MPAR 1φT→MPAR
2φT→MPAR 2φT→MPAR
3φT→MPAR 1φT→MPAR
3φT→TPAR 3φT→TPAR
3φT→TPAR 3φT→TPAR
6 F 2 S 0 8 5 0
[MA-NOLK] = S+T setting
#2 line #1 line

1φT→MPAR

3φT→TPAR

3φT→TPAR
1φT→MPAR
1φT→MPAR 1φT→MPAR
2φT→MPAR
1φT→MPAR 1φT→MPAR
2φT→MPAR 1φT→MPAR
3φT→TPAR 3φT→TPAR
3φT→MPAR
2φT→MPAR 1φT→MPAR
2φT→MPAR 2φT→MPAR
3φT→MPAR 1φT→MPAR
3φT→TPAR 3φT→TPAR
3φT→TPAR 3φT→TPAR
#2 line


