Toshiba GR200 Series - Page 467

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
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&
&
&
&
&
&
&
1
1
&
&
&
&
&
&
&
1
1
1
1
1
1
ARC1-MODE
OFF
FT
SPAR
TPAR
SPAR&TPAR
MPAR
ORIGINAL
Signal ‘1’ is generated when there is no contradiction between the
various signals, that is only one signal is picking up.
ARC1_MODE-OFF
800001EBB0
ARC1_MODE-FT
810001EBB1
ARC1_MODE-SPAR
820001EBB2
ARC1_MODE-TPAR
830001EBB3
800001EBB7
ARC1_MODE-S&T
800001EBB7
ARC1-MODE-MPAR
850001EBB5
800001EBB7
ARC1_MODE-ORG
860001EBB6
1
1
1
ARC1-MODE=OFF
ARC1-MODE=SPAR
ARC1-MODE=TPAR
ARC1-MODE=S&T
ARC1-MODE=ORG
ARC1-MODE=NO-OFF
ARC1-MODE=ON
Initiation
Start
ARC1-MODE=SPAR+S&T
ARC1-MODE=MPAR
Condition
Original
1
8800011B62
CB1_BRIDGE
To TRC
CB1 F.BRIDGE
READY
800001EBB8
Figure 2.34-11 ARC1-MODE input logic
When FT is selected, the ARC function send ‘CB1_BRIDGE’ signal for the TRC function
to be the CB being tripped in three-phases, regardless of the condition of the tripped phase,
the operation of respective protection elements, and the ARC settings; the ARC function does
not operate (i.e., ARC1-FT).
When TPAR is selected, the TRC and the ARC functions operate by the rule that the CB
is tripped in three-phases and can be reclosed. That is, ‘CB1_BRIDGE’ signal is sent for the
TRC function so that the CB will be tripped in three-phases forcibly even if a GEN.TRIP-A
(TRIP COMMAND-A) signal is only generated in the TRC function (as well as GEN.TRIP-B
and GEN.TRIP-C). Note the CB will be tripped in three-phases forcibly, even if a single-phase
fault is detected and instructed a single-phase tripping by the relay applications.