Appendix
A.7 Settings
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
695
2933 FAST Σ i SUPERV Measurem.Superv ON
OFF
ON State of fast current summation
supervis
2935A ΔI min Measurem.Superv 1A 0.05 .. 1.00 A 0.10 A Min. current diff. for wire break
det.
5A 0.25 .. 5.00 A 0.50 A
2941 ϕA Measurem.Superv 0 .. 359 ° 200 ° Limit setting PhiA
2942 ϕB Measurem.Superv 0 .. 359 ° 340 ° Limit setting PhiB
2943 I1> Measurem.Superv 1A 0.05 .. 2.00 A 0.05 A Minimum value I1>
5A 0.25 .. 10.00 A 0.25 A
2944 U1> Measurem.Superv 2 .. 70 V 20 V Minimum value U1>
3001 Sens. Earth Flt Sens. Earth Flt Alarm Only
ON: with Trip
OFF
Alarm Only Sensitive Earth Flt.(comp/ isol.
starp.)
3002 3U0> Sens. Earth Flt 1 .. 150 V 50 V 3U0> pickup
3003 Uph-e min Sens. Earth Flt 10 .. 100 V 40 V Uph-e min of faulted phase
3004 Uph-e max Sens. Earth Flt 10 .. 100 V 75 V Uph-e max of healthy phases
3005 3I0> Sens. Earth Flt 0.003 .. 1.000 A 0.050 A 3I0> Release directional element
3006 T Sens.E/F Sens. Earth Flt 0.00 .. 320.00 sec 1.00 sec Time delay for sens. E/F detec-
tion
3007 T 3U0> Sens. Earth Flt 0.00 .. 320.00 sec 0.00 sec Time delay for sens. E/F trip
3008A TRIP Direction Sens. Earth Flt Forward
Reverse
Non-Directional
Forward Direction for sens. E/F trip
3010 CT Err. I1 Sens. Earth Flt 0.003 .. 1.600 A 0.050 A Current I1 for CT Angle Error
3011 CT Err. F1 Sens. Earth Flt 0.0 .. 5.0 ° 0.0 ° CT Angle Error at I1
3012 CT Err. I2 Sens. Earth Flt 0.003 .. 1.600 A 1.000 A Current I2 for CT Angle Error
3013 CT Err. F2 Sens. Earth Flt 0.0 .. 5.0 ° 0.0 ° CT Angle Error at I2
3101 FCT EarthFltO/C Earth Fault O/C ON
OFF
ON Earth Fault overcurrent function
3102 BLOCK for Dist. Earth Fault O/C every PICKUP
1phase PICKUP
multiph. PICKUP
NO
every PICKUP Block E/F for Distance protection
3103 BLOCK 1pDeadTim Earth Fault O/C YES
NO
YES Block E/F for 1pole Dead time
3104A Iph-STAB. Slope Earth Fault O/C 0 .. 30 % 10 % Stabilisation Slope with Iphase
3105 3IoMin Teleprot Earth Fault O/C 1A 0.01 .. 1.00 A 0.50 A 3Io-Min threshold for Teleprot.
schemes
5A 0.05 .. 5.00 A 2.50 A
3105 3IoMin Teleprot Earth Fault O/C 1A 0.003 .. 1.000 A 0.500 A 3Io-Min threshold for Teleprot.
schemes
5A 0.015 .. 5.000 A 2.500 A
3109 Trip 1pole E/F Earth Fault O/C YES
NO
YES Single pole trip with earth flt.prot.
3110 Op. mode 3I0>>> Earth Fault O/C Forward
Reverse
Non-Directional
Inactive
Inactive Operating mode
3111 3I0>>> Earth Fault O/C 1A 0.05 .. 25.00 A 4.00 A 3I0>>> Pickup
5A 0.25 .. 125.00 A 20.00 A
3112 T 3I0>>> Earth Fault O/C 0.00 .. 30.00 sec; ∞ 0.30 sec T 3I0>>> Time delay
3113 3I0>>> Telep/BI Earth Fault O/C NO
YES
NO Instantaneous trip via Tele-
prot./BI
3114 3I0>>>SOTF-Trip Earth Fault O/C NO
YES
NO Instantaneous trip after Switch-
OnToFault
3115 3I0>>>InrushBlk Earth Fault O/C NO
YES
NO Inrush Blocking
3116 BLK /1p 3I0>>> Earth Fault O/C YES
No (non-dir.)
YES Block 3I0>>> during 1pole dead
time
3117 Trip 1p 3I0>>> Earth Fault O/C YES
NO
YES Single pole trip with 3I0>>>
3120 Op. mode 3I0>> Earth Fault O/C Forward
Reverse
Non-Directional
Inactive
Inactive Operating mode
Addr. Parameter Function C Setting Options Default Setting Comments