24
Example 1.
Feeder terminal
SPAC 531 C1 for
the protection of an
outgoing feeder in a
one-breaker system.
Fig. 11. Feeder terminal SPAC 531 C1 used for protecting an outgoing feeder. The earth-fault relay
module has a tripping function.
I >>
110V
X0/21
Ι
ΙΙ
X0/2
3I>
3I>>
Uo
I >
U1
U2
cos
U3
sin
ϕ
ϕ
INPUT12
INPUT11
INPUT8
INPUT9
TRIP
SIGNAL 2
SIGNAL 3
CLOSE 1
110V
IL1
IL2
IL3
Io
Uo
IRF
L1
L2 L3
L1
L3
SPAC 531 C1
P1
P2
S1
S2
A
N
da
dn
U4
O
I
O
I
O
I
O
I
O <-> I
SIGNAL 1
SIGNAL 4
OPEN 2
CLOSE 2
OPEN 3
CLOSE 3
OPEN 4
CLOSE 4
OPEN 5
CLOSE 5
OPEN 6
CLOSE 6
U12
U23
U31
INPUT10
SIGNAL 5
O
O
I
INPUT13
SIGNAL 6
X0/1
X0/4
X0/5
X0/6
X0/7
X0/8
X0/9
X0/25
X0/26
X0/27
X0/28
X0/29
X0/30
X0/13
X0/14
X0/15
X0/16
X0/17
X0/18
X0/19
X0/20
OPEN 1
X1/4
X1/3
X1/7
X1/6
X2/1
X2/3
X2/2
X2/4
X2/6
X2/5
X2/7
X2/9
X2/8
X1/8
X1/10
X1/9
X3/11
X3/12
X3/13
X3/14
X3/15
X3/16
X3/17
X3/18
X4/11
X4/12
X4/13
X4/14
X4/15
X4/16
X4/17
X4/18
X5/11
X5/12
X5/13
X5/14
X5/15
X5/16
X5/17
X5/18
X6/1
X6/2
X6/3
X6/4
X3/7
X3/8
X3/6
X4/7
X4/8
X4/6
X3/9
X3/10
X4/10
X4/9
INPUT3/I
INPUT3/O
INPUT2/I
INPUT2/O
INPUT1/I
INPUT1/O
INPUT6/I
INPUT6/O
INPUT5/I
INPUT5/O
INPUT4/I
INPUT4/O
INPUT7/I
INPUT7/O
BS1
BACTRL
BS2
X1/12
X1/11
X2/12
X2/11
X2/10
X3/2
X3/3
X3/4
X3/5
X3/1
X4/2
X4/3
X4/4
X4/5
X4/1
X5/2
X5/3
X5/4
X5/5
X5/7
X5/8
X5/6
X6/7
X6/8
X6/9
X6/10
X5/10
X5/9
INPUT14
(ARINH)
(E)
ϕ
ϕ
P
Q
O
Ι
SERIAL
BUS
A
B
C
D
E
F
U11
O -> I
U5
U6,
U7,
U8,
U9
1A
5A
1A
5A
X0/3
Rx
Tx
SPA-ZC 17
1A
5A
1A
5A
110V
100V
110V
(
(
X1/1
X1/2
(
(
U10
+
-
+
-
+
+
100V
100V
100V
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
X5/1
1)
1) Blocking signal to the overcurrent
module of the incoming feeder cubicle