Siemens SIPROTEC 4 7SJ61 - Settings

MofPU = 1 bis 1.94 MofPU = 2 bis 4.75 MofPU = 5 bis 7.75 MofPU = 8 bis 20
1.06 1.56 2.25 3.75 5.25 6.75 9.00 16.00
1.13 1.63 2.50 4.00 5.50 7.00 10.00 17.00
1.19 1.69 2.75 4.25 5.75 7.25 11.00 18.00
1.25 1.75 3.00 4.50 6.00 7.50 12.00 19.00
1.31 1.81 3.25 4.75 6.25 7.75 13.00 20.00
1.38 1.88 14.00
1.44 1.94
[verwendung-einer-anwenderspezifizierbaren-kennlinie-260602-kn, 1, en_US]
Figure 2-55 Use of a user-defined characteristic
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
OFF (Sensitive) Ground Fault
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
3117 50Ns-1 PICKUP 0.001 .. 1.500 A 0.100 A 50Ns-1 Pickup
3117 50Ns-1 PICKUP 1A 0.05 .. 35.00 A 2.00 A 50Ns-1 Pickup
5A 0.25 .. 175.00 A 10.00 A
3118 50Ns-1 DELAY 0.00 .. 320.00 sec; ∞ 2.00 sec 50Ns-1 Time delay
3119 51Ns PICKUP 0.001 .. 1.400 A 0.100 A 51Ns Pickup
2.9.4
Functions
2.9 Ground Fault Protection 64, 67N(s), 50N(s), 51N(s)
138 SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016