Toshiba GRL100-701B Instruction Manual page 121

Autoreclosing requirement
Using PLC function, various reclose requirements can be designed. In Figure 2.15.2.1, a reclose
requirement for "SPAR", "TPAR", "SPAR&TPAR" or "MPAR" can be respectively assigned to
the following signals by PLC:
"SPAR":
"TPAR":
"SPAR&TPAR":
"MPAR":
The default setting is as follows:
Reclose requirement
"SPAR"
"TPAR"
"MPAR"
The setting example is shown in Appendix S.
Interconnection check for multi-phase autoreclose
MPAR is performed when the terminals of double-circuit lines remain interconnected during the
dead time through two or three different phases. Interconnection is checked as follows.
Figure 2.15.2.5 shows the interconnection check scheme in a two-terminal line application. Each
terminal originates a local interconnection check signals CBDS-A, -B and -C when disconnector
DS and the circuit breaker for each phase CB1A, CB1B and CB1C are closed. These signals are
transmitted to the remote terminals as well as used locally.
Interconnection signal LINK-A, -B or -C is established when both the local and remote
interconnection check signals are established for their respective phases.
Interconnection through two or three different phases is checked employing signals LINK-A, -B
or –C of the line and the parallel line. When [ARC-M] is set to "MPAR2", interconnection signal
LINK is output if any two of LINK-A, -B and -C are established. When [ARC-M] is set to
"MPAR3", LINK is output if all of LINK-A, -B and -C are established.
The interconnection signals LINK-A, -B or -C for parallel line are assigned to the binary output
relays as shown in Appendix D.
In the three-terminal line application, the interconnection check is performed with two remote
terminals independently.
When the interconnection check signal CBDS-A, -B, or -C is established at both the local
terminal and remote terminal 1, interconnection signal LINK-A1, -B1, -C1 is established. When
it is established at both the local and remote terminal 2, interconnection signal LINK-A2, -B2 or
-C2 is established. Those signals are assigned to the binary output relays and output to the
parallel line.
Note: In the three-terminal line application, remote terminal 1 and 2 are designated automatically
through the communication circuit setup. The remote terminal 1 is a terminal to which the
local communication port 1 is linked and remote terminal 2 is the terminal to which local
communication port 2 is linked.
When the interconnection with either of the two remote terminals is confirmed employing the
interconnection signals from the line and the parallel line, multi-phase autoreclose can be
performed.
In case the interconnection condition LINK is not satisfied, the following operations can be
[SPR.L-REQ]
[TPR.L-REQ]
[SPR.L-REQ], [TPR.L-REQ]
[MPR.L-REQ]
Default setting
[SPR.L-REQ] = CONSTANT_1
[TPR.L-REQ] = SYP-ON
[MPR.L-REQ] = CONSTANT_1
 120 
6 F 2 S 0 8 5 0
Remarks
No condition
Voltage and synchronism check
No condition