Functional Diagram - Siemens 7SR10 Argus Series Manual

1.5

Functional Diagram

I
L1
(I )
A
I
L2
(I )
B
I
L3
(I )
C
I
4
(I )
G
Fig 1. 7SR10 Overcurrent Relay (Non-Directional)
37
49
(x2)
I
L1
(I )
A
37
49
I (x2)
L2
(I )
B
37
49
I (x2)
L3
(I )
C
46
46
NPS
BC
(x2)
37 SEF 50
I
4
(x2) BF
(I
G/
)
SEF
27
V1
59
(x4)
27
V2
59
(x4)
27
V3
59
(x4)
Fig 2. 7SR10 Overcurrrent Relay (Directional)
©2018 Siemens Protection Devices Limited
50 50
81
49
THD BF (x2)
81 50 50
49
THD
BF (x2)
81
50 50
49
THD BF (x2)
46
46 50N
NPS
BC (x2)
(x2)
51SEF 50SEF 50G
(x2)
(x2) (x2)
86
Optional Version D software
79
67/ 67/
50
51V
50 51
BF
(x4) (x4)
67/ 67/
50
51V
50 51
BF
(x4) (x4)
67/ 67/
50
51V
50 51
BF
(x4) (x4)
67/ 67/
50
50N 51N
BF
(x4) (x4)
67/
67/ 67/ 67/
50SEF
51SEF 50G 51G
(x4)
(x4) (x4) (x4)
81
47 59N
(x4)
(x2) (x2)
Optional Version D software
79
7SR10
51 81
51c
(x2) HBL2
51 81
51c
(x2) HBL2
51 81
51c
(x2) HBL2
81
51N
HBL2
(x2)
N
81
51G
50
HBL2
(x2)
BF
G
74
T/CCS
7SR10
32 55
81
51c
(x2) (x2)
HBL2
32 55
81
51c
HBL2 (x2) (x2)
81 32 55
51c
HBL2 (x2) (x2)
60 60
CTS VTS
81
32S 37G
64H HBL2
(x2)
(x2)
G
74
86
T/CCS
7SR10 Description of Operation
Chapter 1 Page 11 of 77