Siemens 7SR18 Solkor - Figure 1.4-4 Functional Diagram of 7 SR18 Directional Three-Phase and Earth

7SR18 Description Of Operation
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46
BC
46
NPS
(x2)
37 (x2) 49
50
BF
VL1
VL2
VL3
IL1
37 (x2) 49
50
BF
IL2
37 (x2) 49
50
BF
IL3
60
CTS
I4
NOTE: The use of
some functions are
mutually exclusive
67/
50
(x4)
67/
51
(x4)
67/
50N
(x4)
67/
50
(x4)
67/
50
(x4)
67/
51
(x4)
67/
51
(x4)
67/
51N
(x4)
67/
50G
(x4)
67/
51G
(x4)
50 BF
51V
51V
51V
51c (x4)
81HBL2
81HBL237G (x2)
60
VTS
87L
Diff (x2)
87L
Diff (x2)
87L
Diff (x2)
79
Ordering Options
74TCS
(x3)
74CCS
(x3)
86
81HBL2
81HBL2
51c (x4)
51c (x4)
Figure 1.4-4 Functional Diagram of 7SR18 Directional Three-Phase and Earth