1MRS 750616-MUM
Directional or Non-Directional Earth-Fault Relay
Technical Reference Manual
REJ 527
13
4.1.3.
Configuration
The figure below illustrates how the start, trip and binary input signals can be
configured to obtain the required protection functionality.
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The functions of the blocking and start signals are selected with the switches of
switchgroups SGF, SGB and SGR. The checksums of the switchgroups are found
under “SETTINGS” in the HMI menu. The functions of these switches are explained
in detail in the corresponding SG_ -tables.
4.1.4.
Protection
4.1.4.1.
Block diagram
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+
+
+
IRF
1
2
3
SGB1
SGB1
SGB1
Io>>
SGR1
SGR2
SGR3
SGR4
3
3
3
3
2
2
2
2
1
1
1
1
4
4
4
4
4
4
3
3
2
2
1
1
SGR5
SGR6
5 6
3 4
13 14 15
17 18
SGB1
SGB1
SGB1
5
6
7
10 11 12
7 8 9
X2.1
Io>
Uob>
SGF1...SGF5
Uo
Io
BI
IRF
SO2
SO1
PO2
PO1
SGB1
4
START
TRIP
START
TRIP
START
TRIP
Blocking of stage Io>>
Blocking of stage Io>
Blocking of stage Uob>
INDICATIONS CLEARED
OUTP. CONT. UNLATCHED
AND INDICATIONS CLEARED
MEMORIZED VALUES AND
INDIC.CLEARED; OUTPUT
CONTACTS UNLATCHED
SWITCHGROUP SELECTION
SGF1/5
1
1
C
to>>
1
C
START
TRIP
Uob>
Io>
Io>>
tb>
to>
SGR2/x
SGR1/x
SGR5/x
SGR6/x
SGR4/x
SGR3/x
tb>
70 ms
to>,k
70 ms
to>>
60 ms
0.12 * Io>
1.5 * Io>
1.25 * Io>
2 * Io>>
SGF2/1
Io>>
60 ms
SGB1/1
SGB1/2
SGB1/3
SGB1/5
SGB1/6
SGB1/7
SGF2/3
SGF2/7
SGF3/1
SGF3/3
SGF2/8
SGB1/4
SGB1/8
Uob
Io
BI
Uob>
Uo>
Io>
Uo>>
Block5_7
&
&
&
0.50% x Un
0.48% x In
j
b
/
I
j
j
0.1 ... 1s
SGF1/1
C
5 s
PO1
1
SO1
SO2
4
3
2
1
1
C
5 s
PO2
SGF1/2
&
CLEAR INDICATIONS AND MEMORIZED VALUES
CLEAR INDICATIONS AND MEMORIZED VALUES; UNLATCH OUTPUT CONTACTS
CLEAR INDICATIONS
SETTINGS (Group 1/Group 2)
BASIC ANGLE CONTROL or I
j
characteristic (sin(
j
) or cos(
j
))
Summary of Contents for REJ 527
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