6
Block diagram
Fig. 2. Block diagram for overcurrent and earth-fault relay module SPCJ 4D28/E351
I
L1
, I
L2
, I
L3
Phase currents
I
0
Neutral current
BS1, BS2, RRES (BS3)
External signals for blocking or resetting
SGF1..8
Selector switchgroups for relay functions
SGB1...3
Selector switchgroups for external control signals
SGR1...11
Selector switchgroups for configuration of output relays
SS1...SS4, TS1...TS4
Output signals
AR1, AR2, AR3
AR start initiation signal
TRIP
Red operation indicator
Note!
All input and output signals of the relay module
are not necessarily wired to the terminals of each
protection relay containing the SPCJ 4D28/
E351 module. The signals wired to the termi-
nals are shown in the signal diagram of the
concerned protection relay.
I
I
2 x I>>
I
BS1
BS2
RRES
(BS3)
Imax - Imin
Imax
I
SGR 1 / x
SGR 2 / x
SGR 3 / x
SGR 4 / x
SGR 5 / x
SGR 6 / x
SGR 7 / x
SGR 8 / x
SGR 9 / x
SGR 10 / x
SGR 11 / x
0.1
..
1s
50 ms
Settings (main / 2nd)
Reset trip indicators
Reset trip indicators and output relays
Reset trip indicators, output relays and
registers
TRIP
RESET
TS2
4
RESET +
PROGRAM
TS4
8
RESET +
PROGRAM
TS3
6
RESET +
PROGRAM
SS1
1
TS1
2
1
RESET +
PROGRAM
SS2
3
SS3
5
SS4
7
AR1
AR2
AR3
I> start
I> trip
I>> start
I>> trip
I>>> start
I>>> trip
Io> start
Io> trip
Io>> start
Io>> trip
1
2
3
4
5
6
SGF 6 / x
SGF 7 / x
SGF 8 / 5...8
SGF 8 / 1...4
1, 5
2, 6
3, 7
4, 8
1.5
x I>
1.25
x I>
&
60 ms
SGB 1…3/5
SGB 2…3/6
SGB 1…3/7
SGB 1…3/8
SGB 3/4
SGB 2/4
SGB 1/4
SGB 3/3
SGB 2/3
SGB 1/3
SGB 3/2
SGB 2/2
SGB 1/2
SGB 3/1
SGB 2/1
SGB 1/1
SGB 1/6
∆
I>
I>
0.12 x I>
I>>>
Io>
Io>>
SGF 1/6…8
SGF1/5
I>>
SGF1/1…3
t
∆
>
30 ms
t>>
t>, k
30 ms
t>>>
50 ms
to>, ko
30 ms
to>>
SGF 4/1
SGF 4/2
SGF 4/3
SGF 4/4
1
1
1
1
SGF 4/5
SGF 4/6
SGF 4/7
SGF 5/1
SGF 5/2
SGF 5/3
SGF 5/4
SGF 5/5
SGF 5/6
SGF 5/7
SGF 5/8
SPCJ 4D28
L1
L2
L3
0
SPCJ 4D28/E351
Summary of Contents for SPAA 341 C /E351
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