Figure 1-4 Connection Diagram For 7Sr22 Relay - Siemens 7SR21 Manual

+ve
2
BI 4
-ve
4
+ve
6
BI 5
-ve
8
+ve
10
BI 6
+ve
12
BI 7
+ve
14
BI 8
+ve
16
BI 9
-ve
18
+ve
20
BI 10
+ve
22
BI 11
+ve
24
BI 12
+ve
26
BI 13
-ve
28
+ve
22
-ve
24
28 GND.
+ve
2
BI 1
-ve
4
+ve
6
BI 2
-ve
8
+ve
10
BI 3
-ve
12
14 A
16 Screen
18 B
20 Term.
1A
1
2
I
L1
5A (I
3
A
4
1A
5
6
I
L2
5A (I
7
B
8
1A
9
10
I
L3
5A (I
11
C
12
1A
13
14
I
4
5A (I
15
G
16
©2010 Siemens Protection Devices Limited
7SR22
BO 7
BO 8
BO 9
BO 10
BO 11
BO 12
BO 13
BO 14
C
BO 1
BO 2
BO 3
BO 4
BO 5
BO 6
B
1A
I
5
) (I ) 5A
SEF
V
L1
) (V )
A
V
L2
(V )
B
)
V
L3
(V )
C
V
4
)
(V )
X
A
Figure 1-4 Connection Diagram for 7SR22 Relay
7SR21 & 7SR22 Argus Description of Operation
1 1 2
3
5 C
7
Optional
9
I/O
11
13
27 28
15
17
Arrangement of terminals and modules
19
21
23
25
NOTES
27
BI =
BO =
1
3
5
7
9
11
13
15
17
19
21
23
27
25
26
17
18
19
20
21
22
23
24
25
26
27
28
1 2 1 2
B A
Data
Comms
PSU Analogue
(Optional)
27 28 27 28
Rear View
Binary Input
Binary Output
Shows contacts internal to relay case
assembly.
Contacts close when the relay chassis is
withdrawn from case
Chapter 1 Page 13 of 71