part of Figure "Directional characteristic for cos-
ϕ
-measurement" in the functional description of the sensitive
ground fault detection).
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
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
C
Setting Options
Default Setting
Comments
3101
Sens. Gnd Fault
OFF
ON
ON with GF log
Alarm Only
OFF
(Sensitive) Ground Fault
3102
CT Err. I1
0.001 .. 1.600 A
0.050 A
Current I1 for CT Angle
Error
3102
CT Err. I1
1A
0.05 .. 35.00 A
1.00 A
Current I1 for CT Angle
Error
5A
0.25 .. 175.00 A
5.00 A
3103
CT Err. F1
0.0 .. 5.0 °
0.0 °
CT Angle Error at I1
3104
CT Err. I2
0.001 .. 1.600 A
1.000 A
Current I2 for CT Angle
Error
3104
CT Err. I2
1A
0.05 .. 35.00 A
10.00 A
Current I2 for CT Angle
Error
5A
0.25 .. 175.00 A
50.00 A
3105
CT Err. F2
0.0 .. 5.0 °
0.0 °
CT Angle Error at I2
3106
VPH MIN
10 .. 100 V
40 V
L-Gnd Voltage of Faulted
Phase Vph Min
3107
VPH MAX
10 .. 100 V
75 V
L-Gnd Voltage of Unfaulted
Phase Vph Max
3108
64-1 VGND
1.8 .. 200.0 V; ∞
40.0 V
64-1 Ground Displacement
Voltage
3109
64-1 VGND
1.8 .. 170.0 V; ∞
40.0 V
64-1 Ground Displacement
Voltage
3110
64-1 VGND
10.0 .. 225.0 V; ∞
70.0 V
64-1 Ground Displacement
Voltage
3111
T-DELAY Pickup
0.00 .. 320.00 sec; ∞
1.00 sec
Time-DELAY Pickup
3112
64-1 DELAY
0.10 .. 40000.00 sec; ∞
10.00 sec
64-1 Time Delay
3113
50Ns-2 PICKUP
0.001 .. 1.500 A
0.300 A
50Ns-2 Pickup
3113
50Ns-2 PICKUP
1A
0.05 .. 35.00 A
10.00 A
50Ns-2 Pickup
5A
0.25 .. 175.00 A
50.00 A
3114
50Ns-2 DELAY
0.00 .. 320.00 sec; ∞
1.00 sec
50Ns-2 Time Delay
3115
67Ns-2 DIRECT
Forward
Reverse
Non-Directional
Forward
67Ns-2 Direction
3117
50Ns-1 PICKUP
0.001 .. 1.500 A
0.100 A
50Ns-1 Pickup
2.13.5
Functions
2.13 Ground Fault Protection 64, 67N(s), 50N(s), 51N(s)
SIPROTEC 4, 7SJ62/64, Manual
221
C53000-G1140-C207-8, Edition 08.2016
Summary of Contents for SIPROTEC 4
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