Toshiba GRL100-701B Instruction Manual page 17

sends the command when the tripping signals RDIF-A-S, RDIF-B-S, RDIF-C-S or RDIF-S are
output locally and the scheme switches [RDIF] and [TERM] are set to "ON" and "3-TERM"
respectively. The RDIF command is sent to the remote terminal via the 64kb/s digital link
together with other data and signals.
The receiving terminal outputs a local three-phase trip signal RDIF-TRIP under the conditions
that when the command RDIF1 or RDIF2 is received from either of the remote terminals, local
differential protection does not operate, the scheme switches [RDIF] and [TERM] are set to
"ON" and "3-TERM" respectively and no communication channel failure exists in the channel
which received the RDIF command.
When the RDIF function is applied, the command sending signals and receiving signals must be
assigned by PLC function.
RDIF-A-R1
1684
Receiving
signal from
1685 RDIF-B-R1
Remote
Terminal 1
RDIF-C-R1
1686
1687 RDIF-R1
1716 RDIF-A-R2
Receiving
signal from
RDIF-B-R2
1717
Remote
Terminal 2
1718 RDIF-C-R2
1719 RDIF-R2
DIF elements not operated
43C ON
[TERM]
+
"3-TERM"
RDIF_BLOCK
1598
[RDIF]
+
"ON"
DIF-A_TRIP
&
DIF-B_TRIP
&
DIF-C_TRIP
&
DIF-G_TRIP
&
[RDIF]
+
"ON"
(a) Sending terminal
≥1
≥1
≥1
≥1
≥1 ≥1
≥1
≥1
≥1
DIF.FS_OP
&
1
(b) Receiving Terminal
Figure 2.2.5.2 Remote Differential Trip
 16 
451
≥1
452
≥1
453
≥1
≥1
456
&
&
457
&
&
458
&
&
≥1
1649 RDIF_3PTP
RDIF-A_FS
1624
RDIF-B_FS
1625
RDIF-C_FS
1626
6 F 2 S 0 8 5 0
RDIF-A-S
RDIF-B-S
RDIF-C-S
454
RDIF-S
RD.FS-A_ TRIP
RD.FS-A TP
≥1
RD.FS-B_ TRIP
RD.FS-B TP
≥1
RD.FS-C_ TRIP
RD.FS-C TP
≥1
RD.FS_TRIP
455
&