Siemens Argus 7SR21 Technical Manual page 590
Overcurrent relay
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Also See for Argus 7SR21:
- Manual (71 pages) ,
- Installation manual (22 pages) ,
- Manual (15 pages)
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7SR210 & 7SR220 Commissioning & Maintenance Guide
3.7
Magnetising Inrush Detector. (81HBL)
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
Voltage Inputs:
Current Inputs:
Disable:
Map Pickup LED:
Logical operation of the harmonic blocking can be tested by current injection at 100 Hz to cause operation of the
blocking signals.
Page 78 of 82
37
50
49
(x2)
BF
37
50
49
(x2)
BF
37
50
49
(x2)
BF
46
46
60
NPS
BC
CTS
(x2)
50
37
BF
50
37
BF
NOTE: The use of some
functions are mutually exclusive
27
59
(x4)
27
47
59
(x2)
(x4)
27
59
(x4)
27
59
Optional
79
25
Figure 3.7-1
Magnetising Inrush Detector
n/a
I
(I
), I
(I
), I
L1
A
L2
B
L3
7SR22
60
67/
67/
50
CTS-
51V
50
51
AFD
I
(x4)
(x4)
67/
67/
60
50
51V
50
51
CTS-
AFD
I
(x4)
(x4)
67/
67/
60
50
51V
50
51
CTS-
AFD
(x4)
(x4)
I
67/
67/
60
50N
51N
51c
VTS
(x4)
(x4)
67/
67/
50G
51G
(x4)
(x4)
67/
67/
64
50S
51S
H
(x4)
(x4)
81
(x6)
59N
74
(x2)
TCS
(I
),
C
© 2013 Siemens Protection Devices Limited
81
51c
HBL
2
81
51c
HBL
2
81
51c
HBL
2
81
HBL
2N
37G
(x2)
37S
(x2)
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