Magnetising Inrush Detector (81Hbl2) - Siemens 7SR224 Technical Manual

3.7

Magnetising Inrush Detector (81HBL2)

Figure 3-7 Magnetising Inrush Detector
Voltage Inputs:
Current Inputs:
Disable:
Map Pickup LED:
Logical operation of the harmonic blocking can be tested by current injection at 100Hz to cause operation of the
blocking signals.
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37 50
49
(x2) BF
I
L1
(I )
A
37 50
49
(x2) BF
I
L2
(I )
B
37 50
49
(x2) BF
I
L3
(I )
C
46
46 60
NPS
BC CTS
(x2)
67/
64
50G
H
I
4 (x4)
(I /I )
G SEF
NOTE: The use of some
functions are mutually exclusive
27
V 27S
L1
59
(V ) 59S
A
(x4)
27
V 27S
L2
59
(V ) 59S
B
(x4)
27
V 27S
L3
59
(V ) 59S
C
(x4)
V 27
4
(V ) 59
X
n/a
I (I ), I (I ), I (I ),
L1 A L2 B L3 C
7SR224 Argus Commissioning & Maintenance Guide
7SR224
67/ 67/ 81
51V 50 51 HBL
(x4) (x4) 2
67/ 67/ 81
51V 50 51 HBL
(x4) (x4) 2
67/ 67/ 81
51V 50 51 HBL
(x4) (x4) 2
60
VTS
67/ 67/ 67/
51G 50S 51S
(x4) (x4) (x4)
Note:
Example shows
Voltage Config =
47 81 Van, Vbn, Vcn
(x2) (x4)
74
Batt
59N
TCS
Test
(x2)
(x3)
Cap.
79
Test
Chapter 6 Page 63 of 73