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[selektivitaetskrit-intermitt-erdfehler-120902-oz, 1, en_US]
Figure 2-57
Address 3306 Nos.det. specifies the number of pickups after which a ground fault is considered intermit-
tent.
Settings
2.10.3
The table indicates region-specific presettings. Column C (configuration) indicates the corresponding secon-
dary nominal current of the current transformer.
Addr.
Parameter
3301
INTERM.EF
3302
Iie>
3302
Iie>
3302
Iie>
3303
T-det.ext.
3304
T-sum det.
3305
T-reset
3306
Nos.det.
2.10.4
Information List
No.
Information
6903
>IEF block
6921
IEF OFF
6922
IEF blocked
6923
IEF enabled
6924
IIE Fault det
6925
IIE stab.Flt
6926
IIE Flt.det FE
6927
Intermitt.EF
SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016
Example of selectivity criteria of the intermittent ground fault protection
C
Setting Options
OFF
ON
1A
0.05 .. 35.00 A
5A
0.25 .. 175.00 A
1A
0.05 .. 35.00 A
5A
0.25 .. 175.00 A
0.005 .. 1.500 A
0.00 .. 10.00 sec
0.00 .. 100.00 sec
1 .. 600 sec
2 .. 10
Type of
Informa-
tion
SP
OUT
OUT
OUT
OUT
OUT
OUT
OUT
2.10 Intermittent Ground Fault Protection
Default Setting
OFF
1.00 A
5.00 A
1.00 A
5.00 A
1.000 A
0.10 sec
20.00 sec
300 sec
3
Comments
>block interm. E/F prot.
Interm. E/F prot. is switched off
Interm. E/F prot. is blocked
Interm. E/F prot. is active
Interm. E/F detection stage Iie>
Interm. E/F stab detection
Interm.E/F det.stage Iie> f.Flt. ev.Prot
Interm. E/F detected
Functions
Comments
Intermittent earth fault
protection
Pick-up value of interm. E/F
stage
Pick-up value of interm. E/F
stage
Pick-up value of interm. E/F
stage
Detection extension time
Sum of detection times
Reset time
No. of det. for start of int.
E/F prot
145
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