Siemens SIPROTEC 4 7SJ61 User Manual

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

Siemens SIPROTEC 4 7SJ61 Specifications

General

Brand	Siemens
Model	SIPROTEC 4 7SJ61
Category	Relays
Language	English