Toshiba GR200 Series Instruction Manual page 617

Line differential protection ied
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Select condition
(ii)
Figure 3.7-8 shows the select condition logic in the GCNT01 function. The GCNT01 function
checks the condition for the select command using the signal "S4301_STATE" and other signals.
When resetting the counter is performed from the "Statics sub-menu" in the HMI operation†,
the user should set On for scheme switch [GCNT01-HMI].
†Note: The HMI operation is discussed in
From SOTFSW*1
Command blocking*1(S4301 defines "Blocked")
S4301_STATE
Double Command Blocking detected*2
Other devices traveling detected*3
Function "Automatic sequence control" is in progress
ASEQ_MULTI_SEL
From Control hierarchy *5
540001 800E00ED5A
GCNT00IN_TMP_51
From CMNCTRL
Serious error detection
SERI_ERR
Figure 3.7-7 Select condition logic for Reset in GCNT01
Note: "Command blocking" disables any operation except its own; the "command
1
blocking" is initiated by the status of "S4301" in a software switch controller
function (SOFTSW). The IEC 61850 standard defines "Command Blocking" as
"CmdBlk". For more information on "S4301", see Chapter
application: Software switch control function
Note: "Double Command Blocking (DCB)" is an operation philosophy. It can be used to
2
protect the substation. The user can program it using GR-TIEMS. The DCB
operating signal is denoted as "DCB RCB OR" in Table 3.7-3.
Note: If the event "device-travelling" is detected, it indicates that another operator is
3
changing the status of a device. Thus, the IED should inhibit the operation of any
device for the duration that the event is detected. The detected signal is denoted
as "Traveling OR" in Table 3.7-3.
Note: Criteria "unmatched conditions" are decided when the "Test-bit status" in a
4
command is not identical to the "IED test status".
Note: The user will need to program the PLC logic "Control hierarchy condition". The
5
user is also required to connect the logic condition with the select condition logic
using the connection pint "GCNT00IN_TMP_51" (see Table 3.7-4). For more
information, see Chapter
GCNT01 function (Function ID: 540001)
DCB RCV OR
Traveling OR
Unmatched condition detected *4
[GCNT01-HMI]
On
[DPOS01-EN]
On
Control and monitoring application: Control hierarchy
- 594 -
Chapter User interface: Monitoring sub-menu
1≥
&
Control and monitoring
. (Table 3.7-3)
6F2S1914 (0.49)
.
To select logic
Select condition
&
.
GRL200 (Soft 033 & 037)

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