Figure 1-8 Functional Diagram Of 7Sr1205-2_A12-_Da0 Relay; Figure 1-9 Functional Diagram Of 7Sr1205-4_A12-_Da0 Relay - Siemens 7SR11 Manual

IL1
IL2
IL3
I4
VL1
VL2
VL3

Figure 1-8 Functional Diagram of 7SR1205-2_A12-_DA0 Relay

IL1
IL2
IL3
I4
VL1
VL2
VL3

Figure 1-9 Functional Diagram of 7SR1205-4_A12-_DA0 Relay

©2012 Siemens Protection Devices Limited
7SR1205-2_A12-_DA0
67/
37 50
49
51V
50
(x2) BF
(x4)
67/
37 50
51V
49
50
(x2) BF
(x4)
67/
37 50
49 51V
50
(x2) BF
(x4)
67/
50N
51c
(x4)
67/
50 81H
50G
37 64H
BF BL2
(x4)
27
59
(x4)
27
81 59N
59
47
(x4) (x2)
(x4)
NOTE:
27
The use of some functions
59
(x4) are mutually exclusive
7SR1205-4_A12-_DA0
67/
37 50
49 51V
50
(x2) BF
(x4)
67/
37 50
51V
49
50
BF
(x2)
(x4)
67/
37 50
49 51V
50
(x2) BF
(x4)
67/
51c 50N
(x4)
67/50 67/51
50 81H
37 64H
SEF
BF BL2
(x4)
27
59
(x4)
27
81 59N
59
47
79
(x2)
(x4)
(x4)
NOTE:
27
The use of some functions
59
(x4) are mutually exclusive
7SR11 & 7SR12 Description Of Operation
67/
51
(x4)
67/ 46
46
51 NPS
BC
(x4) (x2)
67/ 81H
51 BL2
(x4)
67/
60 60
51N
CTS VTS
(x4)
67/
51G
(x4)
86
74 74
CCS
TCS
79
(x3) (x3)
67/
51
(x4)
67/ 46
46
51 NPS
BC
(x4) (x2)
67/
81H
51
BL2
(x4)
67/
60 60
51N
CTS VTS
(x4)
SEF
(x4)
86
74 74
CCS
TCS
(x3) (x3)
Chapter 1 Page 13 of 76