ABB Relion REC670 - Section 19 Remote communication; 19.1 Binary signal transfer; 20.2 Self supervision with internal event list INTERRSIG

Section 19 Remote communication
19.1 Binary signal transfer
IP12423-1 v2
19.1.1 Identification
M14849-1 v2
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Binary signal transfer BinSignReceive - -
Binary signal transfer BinSignTransm - -
19.1.2 Application
IP16245-1 v1
M12844-3 v3
The IEDs can be equipped with communication devices for line differential communication
and/or communication of binary signals between IEDs. The same communication hardware is
used for both purposes.
Communication between two IEDs geographically on different locations is a fundamental part
of the line differential function.
Sending of binary signals between two IEDs, one in each end of a power line is used in
teleprotection schemes and for direct transfer trips. In addition to this, there are application
possibilities, for example, blocking/enabling functionality in the remote substation, changing
setting group in the remote IED depending on the switching situation in the local substation
and so on.
When equipped with a LDCM, a 64 kbit/s communication channel can be connected to the IED,
which will then have the capacity of 192 binary signals to be communicated with a remote IED.
19.1.2.1 Communication hardware solutions
M12844-11 v4
The LDCM (Line Data Communication Module) has an optical connection such that two IEDs
can be connected over a direct fiber (multimode), as shown in figure
212. The protocol used is
IEEE/ANSI C37.94. The distance with this solution is typical 110 km.
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en06000519-2.vsd
IEC06000519 V2 EN-US
Figure 212: Direct fiber optical connection between two IEDs with LDCM
The LDCM can also be used together with an external optical to galvanic G.703 converter or
with an alternative external optical to galvanic X.21 converter as shown in figure 213. These
1MRK 511 358-UEN A Section 19
Remote communication
431
Application manual