Signal Diagram; Signal Abbreviations - ABB SPAJ 140 C User Manual And Technical Description

Combined overcurrent and earth-fault relay
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Signal diagram

Signal
abbreviations
The figure below schematically illustrates how
the start, trip, control and blocking signals can
IL1
I>
IL2
IL3
SGB / 1
I>>
SGB / 2
BS
Io>
Io
SGB / 3
Io>>
SGB / 4
SGB / 5
REMOTE SETTINGS
SGB / 8
RELAY RESET
Fig. 4. Signal diagram of the combined overcurrent and earth-fault relay type SPAJ 140 C
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 in the setting menu of
I
, I
, I
Energizing current of phase L1, L2 and L3
L1
L2
L3
I
Neutral current (Residual current)
0
BS
Blocking or control signal
SS1
Start signal 1
SS2
Start signal 2
SS3
Start signal 3
TS1
Operate signal 1 (Trip signal 1)
TS2
Operate signal 2 (Trip signal 2)
BS
Blocking signal
AR1...3
Auto-reclose start signals (not in use in relay SPAJ 140 C)
IRF
Internal relay failure
SGF
Switchgroup for functions
SGB
Switchgroup for blockings
SGR
Switchgroup for relay configuration
be configured to obtain the required protection
functions.
SGR3 / 1
SGR1 / 1
SGR3 / 2
SGR2 / 1
t>, k
SGR2 / 2
SGR1 / 2
SGR3 / 3
SGR1 / 3
SGB / 6
SGF2 / 7
SGR3 / 4
SGR2 / 3
t>>
SGR2 / 4
SGR1 / 4
1
SGR3 / 5
SGR1 / 5
SGR3 / 6
SGR2 / 5
to>, ko
SGR2 / 6
SGR1 / 6
SGR3 / 7
SGB / 7
SGR1 / 7
SGR3 / 8
SGR2 / 7
to>>
SGR2 / 8
SGR1 / 8
REDUCED BLOCK DIAGRAM
the protection relay module. The functions of
the different switches are explained in detail in
the user´s manual of the protection relay mod-
ule SPCJ 4D29.
IRF
TS1
1
RESET+
PROGRAM
1
SS1
(AR2)
SGF1 / 4
0.1...1s
SS2
SGF2 / 8
(AR3)
SS3
(AR1)
RESET+
PROGRAM
TS2
1
1
TRIP
RESET
SPCJ 4D29
IRF
F
START 1
E
START 2
D
SIGNAL 1
C
SIGNAL 2
B
TRIP
A
SPTU ___R1
7

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