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ABB Substation Automation
Products and Systems
1.3
1MRS750613-MUM
User's Guide
Configuration
Setting and connection examples
The appropriate configuration of the output contact matrix enables using the start
signals of the overcurrent unit as contact functions. The start signals can be used for
blocking co-operating protection relays, for signalling and for initiating autoreclosing.
Figures 1.3-1 and 1.3-2 represent the relay with default configuration: all trips are
routed to operate the circuit breaker.
BI
+
X1.1
X2.1
1 2 3 4 5 6 7 8 9
17 18
SGB1
5
SGB1
6
SGB1
1
SGB1
2
SGB1
3
Figure 1.3-1 Connection diagram of the overcurrent relay
L1
L2
L3
I
O
+
~
U aux
SO2
IRF
1
2
13 14 15
10 11 12
+
~
+
IRF
SGR1
x
START
3I>
SGR2
4
Blocking of stage
TRIP
SGR3
x
START
3I>>
SGR4
4
Blocking of stage I>>
TRIP
x = Factory Default
INDICATORS RESET
I/O
RELAYS & IND. RESET
MEMORIZED VALUES
RESET
-
0
-
1
+
+
SO1
PO2
PO1
7 8 9
5 6
3 4
+
+
Optical
PC-interface
x
1
2
x
x
3
x
1
2
x
x
3
REJ 513 THREE PHASE OVERCURRENT
CONFIGURATION
REJ 513
PC
11
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