Figure 1-3 Functional Diagram Of 7Sr22 Relay - Siemens 7SR21 Manual

I
L1
(I
A
I
L2
(I
B
I
L3
(I
C
I
4
(I
G
I
5
(I
SEF
V
L1
(V )
A
V
L2
(V )
B
V
L3
(V )
C
V
4
(V )
X
©2010 Siemens Protection Devices Limited
37 50
49
(x2) BF
)
37 50
49
(x2) BF
)
37 50
49
(x2) BF
)
46
46 60
NPS
BC CTS
(x2)
37
)
37
)
functions are mutually exclusive
27
59
(x4)
27
47
59
(x2)
(x4)
27
59
(x4)
27
59
Optional
79
Figure 1-3 Functional Diagram of 7SR22 Relay
7SR21 & 7SR22 Argus Description of Operation
60 67/ 67/ 81
CTS- 51V 50 51 HBL
I (x4) (x4)
60 67/ 67/ 81
CTS- 51V 50 51 HBL
(x4) (x4)
I
67/ 67/ 81
60
CTS- 51V 50 51 HBL
I (x4) (x4)
67/ 67/ 81
60
50N 51N HBL
51c
VTS
(x4) (x4) 2N
67/ 67/
50 37G
50G 51G
BF (x2)
(x4) (x4)
67/ 67/
50 64 37S
50S 51S
BF H (x2)
(x4) (x4)
NOTE: The use of some
81
(x6)
59N 74
(x2) TCS
7SR22
2
2
2
Chapter 1 Page 12 of 71