Toshiba GR200 Series Instruction Manual page 101

Line differential protection ied
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†Note: For more information, see
For applying N=3 frame, set Wide for scheme switch [CH*_COM_WIDTH].
Reception of remote-DIFGL-operation signal
Figure 2.7-8 shows the RDIF reception logic for the DIFLG function: PLC connection point
"R1.DIFGL_OP" is provided for the signal reception from the Remote-1_relay, another PLC
connection point "R2.DIFGL_OP" is provided for the Remote-2_relay. The receipt signals of
both remote-relays are ORed; then they are ANDed with the local DIFGL operation signal
when the user set On for scheme switch [DIFGL-RDIF-EN]. Finally, the RDIF function begins
to issue a trip signal. The SCOM4-SA1 in the sub-communication channel is applied.
800000EBB5
R1.DIFGL_OP
R1 channel being in sound
810000EBB6
R2.DIFGL_OP
R2 channel being in sound
EXECUTE-NORM-R2
DIFGL-RDIF-EN
On
Local DIFGL logic
810000EBB1
DIFGL.RDIF_BLOCK
8F0000EBB2
DIFGL_BLOCK
800000EBB0
DIFGL-TP_BLOCK
From Fail-safe of DIFGL
DIFGLFS_OP
800000EBB3
DIFGL-INST_OP
Figure 2.7-8 Reception of remote operation signal in RDIF
Chapter Relay application: Communication application
8000001BB5
&
8100001BB6
&
800001C23
1
8100001BB1
≥1
1
8F00001BB2
8000001BB0
8000001BB3
- 78 -
800001B62
≥1
&
&
&
6F2S1914 (0.49)
TDIFGL
8000001B23
t
0
≥1
DIFGL-TRIP
0.00 to 300.00s
&
GRL200 (Soft 033 & 037)
.
To TRC

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