Siemens siprotec 7SJ63 - Page 122

Configuration
5-10 7SJ63 Manual
C53000-G1140-C120-1
Figure 5-7 shows the common output relay with several switching devices, in contrast
to all other output relays. Simultaneous control of multiple switching devices is
blocked, for safety reasons.
The common output relay automatically acquires the characteristics of the controlling
relay upon issuing of a command to a switching device and, therefore, is not individu-
ally configured. The final command output is via a single contact.
Figure 5-8 Double Command with Double Contacts (with 4 Relays)
Figure 5-9 Double Command with Double and Single Contacts (with 3 Ralays)
Note:
It is recommended to mask Trip and Close commands from a protection function the
same binary I/O’s, if they operate the same breaker. If for instance, the Close com-
mand of the Control function uses two contacts the auto reclose function should be
masked also to both contacts. See elementary diagrams in the appendix A.
CLOSING
Command
C+1
C+2
TRIP
Command
C–1
t
C+1 C–1
V+
V–
C+2
Relay Configuration:
C–2
C–2
C+1
X
BO 1
C–1
X
2
34
C+2
X
C–2
X
CLOSE TRIP
Switching Device
COIL COIL
CLOSING
Command
C+1
C+2
TRIP
Command
C–
t
C+1
C–
V+
V–
C+2
Relay Configuration:
C+1
X
BO 1
C–
X
23
X
C+2
CLOSE TRIP
Switching Device
COIL COIL
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