Toshiba GR200 Series Instruction Manual page 379

Start logic – setting (FT-3P FAULT)
(iv)
Start logic generates 'ARC START' signal when the TRC function has any 'GEN.TRIP-A', '-B',
'-C' signals coming from relay functions. The type of tripping (i.e., single-phase-tripping, two-
or-three-phase-tripping, or three-phase tripping) is also checked in Start logic. Use PLC
connection points 'EXT.ARC_START-A' and others if an external relay is available to start the
ARC function.
800001EBCE F.CB1_94TT
810002EBCB F.CB2_94TT
800000EBB5 RYOP-A
810000EBB6 RYOP-B
820000EBB7 RYOP-C
800001EBCF
ARC1_BLOCK
810002EBB7 ARC2_BLOCK
820000EBB4 ARC_BLOCK
From TRC
GEN.ARC-BLOCK
GEN.TRIP-A
GEN.TRIP-B
GEN.TRIP-C
800000EBB0 EXT.ARC_START-A
810000EBB1
EXT.ARC_START-B
820000EBB2 EXT.ARC_START-C
ARC1-MODE input
ARC1-MODE=NO-OFF
ARC2-MODE input
ARC2-MODE=NO-OFF
800000EBB3 ARC NO ACT
Initiation
ARC1 IN-PROG OR
ARC1-S1 IN-PROG
ARC2-S1 IN-PROG
If the scheme switch [FT-3P FAULT] is set to On, 'CB1_94TT' and 'CB2_94TT' signals are
generated and introduce the three-phase tripping (final trip) for the TRC function during the
FT-3PFAULT
On
1
8500001B6C
1
&
1
0.02s
≥1
≥1
≥1
&
≥1
&
≥1
&
≥1
&
≥1
≥1
&
1
≥1
1
Figure 2.24-13 Start logic
- 358 -
&
&
0 t
&
0.1s
0 t
&
0.1s
1
≥1
1
1
0.01s
S
R
S
R
1
S
R
1
1
6F2S1915 (0.46)
To TRC
CB1_94TT
CB2_94TT
ARC1 FT
CB1_94TT
ARC2 FT
CB2_94TT
ARC1 FT
CB1_94TT
ARC2 FT
CB2_94TT
8300001B64
EXT.ARC_START
Initiation
8400001B65
ARC START
Condition
8000001B66
TRIP-ANYPH
≥1
To Multiphase
8100001B67
trip in SPAR
&
TRIP-1PH
≥1
1
&
1
&
1
To Evolving fault
logic
8200001B68
&
TRIP-MPH
≥1
&
&
8300001B69
TRIP-3PH
&
MPAR judgment
Reclose sequence
NON ARC-S1_ IN-PROG
GRZ200 (Soft 031 & 032)