Siemens Argus 7SR21 Technical Manual page 575
Overcurrent relay
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2.13 Power Factor (55)
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:
Apply balanced 3 phase rated voltage and current. Increase current phase angle until the LED assigned to '55-n'
is lit. Record this angle in the table below. Decrease the angle until the LED resets. Record the angle.
55 Setting
55-1
55-2
© 2013 Siemens Protection Devices Limited
60
37
50
49
CTS-
(x2)
BF
60
37
50
49
CTS-
(x2)
BF
60
37
50
49
CTS-
(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
81
59
(x2)
(x6)
(x4)
27
59
(x4)
27
59
Figure 2.13-1
V
(V
), V
(V
), V
L1
A
L2
B
I
(I
), I
(I
), I
(I
L1
A
L2
B
L3
C
49
55-n - Self Reset
Angle
7SR210 & 7SR220 Commissioning & Maintenance Guide
67/
50
21
51V
50/51
AFD
LB
I
(x4)
67/
50
21
51V
50/51
AFD
LB
(x4)
I
67/
50
21
51V
50/51
AFD
LB
(x4)
I
67/
60
50/51N
VTS
(x4)
67/
50/51G
(x4)
67/
64
50/51S
H
(x4)
32
32S
(x2)
(x2)
74
TCS
59N
(x2)
79
25
Power Factor
(V
)
L3
C
),
Pick-Up
81
51c
HBL
2/5
81
51c
HBL
2/5
81
51c
HBL
2/5
81
51c
HBL
2/5N
37G
(x2)
37S
(x2)
55
21FL
Optional
Drop-Off
Page 63 of 82
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