Figure 1.4-1 Functional Diagram Of 7Sr18 Non-Directional Three-Phase And Earth - Siemens 7SR18 Solkor Manual

7SR18 Description Of Operation
IL1
IL2
IL3
I4

Figure 1.4-1 Functional Diagram of 7SR18 Non-Directional Three-Phase and Earth

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50
37 (x2) 49
BF
50
37 (x2) 49
BF
50
37 (x2) 49
BF
50N 51N
(x2) (x2)
50G
37G (x2) 50 BF
(x2)
74TCS 74CCS
86
(x3) (x3)
50 51 87L
(x2) (x2) Diff (x2)
50 51 87L
(x2) (x2) Diff (x2)
50 51 87L
Diff (x2)
(x2) (x2)
46
60
NPS
CTS
(x2)
51G
81HBL2
(x2)
Ordering Options
79
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81HBL2 51c (x2)
81HBL2 51c (x2)
81HBL2 51c (x2)
46
BC
NOTE: The use of
some functions are
mutually exclusive