Toshiba GR200 Series - (iv) Start logic - setting (FT-3 P FAULT)

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 447 -
(iv) Start logic – setting (FT-3P FAULT)
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.
GEN.TRIP-A
&
1
S
R
8300001B64
1
1
1
1
GEN.TRIP-B
GEN.TRIP-C
&
&
&
&
1
ARC1-MODE=NO-OFF
ARC2-MODE=NO-OFF
1
1
1
1
S
R
S
R
1
1
1
&
1
1
1
&
1
1
&
&
&
&
&
1
1
ARC2-S1 IN-PROG
NON ARC-S1_ IN-PROG
EXT.ARC_START
ARC START
TRIP-ANYPH
TRIP-1PH
TRIP-MPH
TRIP-3PH
8400001B65
8000001B66
8100001B67
8200001B68
8300001B69
0.01s
ARC NO ACT
800000EBB3
EXT.ARC_START-A
800000EBB0
EXT.ARC_START-B
810000EBB1
EXT.ARC_START-C
820000EBB2
Initiation
Initiation
Condition
To Multiphase
trip in SPAR
To Evolving fault
logic
From TRC
1
Reclose sequence
ARC1-MODE input
ARC2-MODE input
ARC1-S1 IN-PROG
1
1
1
0.02s
RYOP-A
800000EBB5
RYOP-B
810000EBB6
RYOP-C
820000EBB7
1
&
On
FT-3PFAULT
8500001B6C
&
ARC1 IN-PROG OR
CB1_94TT
To TRC
ARC1 FT
&
CB2_94TT
ARC2 FT
GEN.ARC-BLOCK
0 t
0.1s
0 t
0.1s
ARC_BLOCK
820000EBB4
ARC1_BLOCK
800001EBCF
ARC2_BLOCK
810002EBB7
1
1
&
&
CB2_94TT
ARC2 FT
CB1_94TT
ARC1 FT
F.CB1_94TT
800001EBCE
F.CB2_94TT
810002EBCB
CB1_94TT
CB2_94TT
MPAR judgment
Figure 2.34-14 Start logic
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