ABB Substation Automation
Products and Systems
User’s Guide
REJ 513
1MRS750613-MUM
63
Note!
The current carrying capacity of the wiring, terminals and measuring transformers of
the relay is limited, see chapter “Technical data”.
L1
PC
4
4
x
4
x
3
3
3
2
2
2
2
1
x
1
1
1 A
5 A
1 A
5 A
1 A
5 A
T
est513
PO1
PO2
+
+
IRF
+
+
3I>
3I>>
1MKC950001-1
~
5 6
3 4
13 14 15
1 2
17 18
1 2 3 4 5 6 7 8 9
5
6
10 11 12
7 8 9
SO1
SO2
X1.1
X2.1
L1
L2
L3
+ (~)
- (~)
S2
S1
N
A
IRF
START
TRIP
START
TRIP
SGR1
SGR2
SGR3
SGR4
SGB1
SGB1
I/O
1
2
3
SGB1
SGB1
SGB1
See text!
BI
Uaux
Optical
PC-interface
Blocking of stage I>>
Blocking of stage I>
TIMER START
TIMER STOP
INDICATORS RESET
RELAYS & IND. RESET
MEMORIZED VALUES
RESET
Figure 2-1 Secondary injection test circuitry for the overcurrent relay
When the test circuit has been completed and the switchgroups set, the auxiliary
voltage may be connected to the relay. The operation of the test circuit can be verified
with the aid of a multimeter.
2.1
Testing of the phase current measuring transformers
Test each used 1 A or 5 A current transformer input separately. Apply a pure
sinusoidal voltage to the relay and compare the current value read from the relay via
serial communication with that shown by the ammeter. The measurements can be
made, for instance, at the rated current of the relay. Note that the relay shows the
measured current as a multiple of the rated current I
n
of the energizing input used.
Summary of Contents for REJ 513
Page 71: ......
