Technical data

38
1MRS751108-MUM
Protection Relay
Technical Reference Manual, General
REX 521
A051909
Fig. 5.1.12.5.-1 Example of a SPA-based substation automation system
In the case of longer transmission distance, for example between MicroSCADA
system and a substation, the system configuration presented in Fig. 5.1.12.5.-2 is
recommended.
A051910
Fig. 5.1.12.5.-2 Example of a SPA-based substation automation system with a
longer transmission distance
O
I
SPAC 331 C
MicroSCADA
SPA-ZC22
SPA-ZC21
RER 103
REX 521 SPACOM REF 54_REX 521
REX 521
READY START TRIP
FEEDER PROTECTION
REX 521
READY START TRIP
FEEDER PROTECTION
REF 541
Uaux = 80...265 Vdc/ac
fn = 50 Hz
In = 1/5 A (I)
1MRS xxxxxx
98150
9509
Ion = 1/5 A (Io)
Un = 100/110 V (U)
Uon = 100/110 V (Uo)
21 kV
CB OK
AROFF
O
O
1 2 3 4 5 6 7 8
1 2 3 4
T
12
345
R
12
345
_
L
P
123456
N
+
S
1234 5678
S
1234
5
2
SPA-ZC 22
R
Ser. No
110/125/220 V DC
110/120/230/240 V AC
RS
SPA
OPTICAL
MASTE
SLAV
0011 11
1100 0
0
00
01
11
1
1
0111
1001
1001
S
5B0M
4B1M
3B2M
2B3M
1B4M
1
0
S
POWE
AUX
INT
SERIAL
RS
SERIAL
SPA / RS 485
S
U
AUX
24/48/60 V DC
Optical SPA-bus
COM-port (RS 232)
SPA-bus
COM-port (RS 232)
Protocol X
MicroSCADA
SPA-ZC22
RS232C
REX 521 REX 521 REX 521 REX 521
SPA-ZC22
REX 521
READY START TRIP
FEEDER PROTECTION
REX 521
READY START TRIP
FEEDER PROTECTION
REX 521
READY START TRIP
FEEDER PROTECTION
REX 521
READY START TRIP
FEEDER PROTECTION
O
O
1 2 3 4 5 6 7 8
1 2 3 4
T
12
345
R
12
345
_
L
P
1234 56
N
+
S
1234 5678
S
1234
5
2
SPA-ZC 22
R
Ser. No
110/125/220 V DC
110/120/230/240 V AC
RS
SPA
OPTICAL
MASTE
SLAV
0011 11
1100 0
0
00
01
11
1
1
0111
1001
1001
S
5B0M
4B1M
3B2M
2B3M
1B4M
1
0
S
POWE
AUX
INT
SERIAL
RS
SERIAL
SPA / RS 485
S
U
AUX
24/48/60 V DC
O
O
1 2 3 4 5 6 7 8
1 2 3 4
T
12
345
R
12
345
_
L
P
123456
N
+
S
1234 5678
S
1234
5
2
SPA-ZC 22
R
Ser. No
110/125/220 V DC
110/120/230/240 V AC
RS
SPA
OPTICAL
MASTE
SLAV
0011 11
1100 0
0
00
01
11
1
1
0111
1001
1001
S
5B0M
4B1M
3B2M
2B3M
1B4M
1
0
S
POWE
AUX
INT
SERIAL
RS
SERIAL
SPA / RS 485
S
U
AUX
24/48/60 V DC
SPA bus (loop), plastic fibre optics
SPA bus, glass fibre optics
Maximum length with plastic fibre: 20 m
Maximum length with glass fibre: 1000 m