Settings - Siemens SIPROTEC 4 7SJ61 Manual

Functions
2.9 Ground Fault Protection 64, 67N(s), 50N(s), 51N(s)
MofPU = 1 bis 1.94
1.06 1.56
1.13 1.63
1.19 1.69
1.25 1.75
1.31 1.81
1.38 1.88
1.44 1.94
[verwendung-einer-anwenderspezifizierbaren-kennlinie-260602-kn, 1, en_US]
Figure 2-55
Information on the Configuration of the Current Threshold
With devices with sensitive ground fault input, generally settings may be entered in primary values with
consideration given to the ratio of the applicable current transformer. However, problems related to the reso-
lution of the pickup currents can occur when very small settings and small nominal primary currents are
involved. The user is therefore encouraged to enter settings for the sensitive ground fault detection in secon-
dary values.

Settings

2.9.4
Addresses which have an appended "A" can only be changed with DIGSI, under "Additional Settings".
The table indicates region-specific presettings. Column C (configuration) indicates the corresponding secon-
dary nominal current of the current transformer.
Addr. Parameter
3101 Sens. Gnd Fault
3113 50Ns-2 PICKUP
3113 50Ns-2 PICKUP
3114 50Ns-2 DELAY
3117 50Ns-1 PICKUP
3117 50Ns-1 PICKUP
3118 50Ns-1 DELAY
3119 51Ns PICKUP
138
MofPU = 2 bis 4.75
2.25 3.75
2.50 4.00
2.75 4.25
3.00 4.50
3.25 4.75
Use of a user-defined characteristic
C Setting Options
OFF
ON
0.001 .. 1.500 A
1A 0.05 .. 35.00 A
5A 0.25 .. 175.00 A
0.00 .. 320.00 sec; ∞
0.001 .. 1.500 A
1A 0.05 .. 35.00 A
5A 0.25 .. 175.00 A
0.00 .. 320.00 sec; ∞
0.001 .. 1.400 A
MofPU = 5 bis 7.75
5.25 6.75
5.50 7.00
5.75 7.25
6.00 7.50
6.25 7.75
Default Setting Comments
OFF (Sensitive) Ground Fault
0.300 A 50Ns-2 Pickup
10.00 A 50Ns-2 Pickup
50.00 A
1.00 sec 50Ns-2 Time Delay
0.100 A 50Ns-1 Pickup
2.00 A 50Ns-1 Pickup
10.00 A
2.00 sec 50Ns-1 Time delay
0.100 A 51Ns Pickup
C53000-G1140-C210-6, Edition 05.2016
MofPU = 8 bis 20
9.00 16.00
10.00 17.00
11.00 18.00
12.00 19.00
13.00 20.00
14.00
SIPROTEC 4, 7SJ61, Manual