Addr. Parameter Function C Setting Options Default Setting Comments
1243A SLOPE 2 Diff. Prot 0.25 .. 0.95 0.50 Slope 2 of Tripping Char-
acteristic
1244A BASE POINT 2 Diff. Prot 0.00 .. 10.00 I/InO 2.50 I/InO Base Point for Slope 2 of
Charac.
1251A I-REST. STARTUP Diff. Prot 0.00 .. 2.00 I/InO 0.10 I/InO I-RESTRAINT for Start
Detection
1252A START-FACTOR Diff. Prot 1.0 .. 2.0 1.0 Factor for Increasing of
Char. at Start
1253 T START MAX Diff. Prot 0.0 .. 180.0 sec 5.0 sec Maximum Permissible
Starting Time
1261A I-ADD ON STAB. Diff. Prot 2.00 .. 15.00 I/InO 4.00 I/InO Pickup for Add-on Stabili-
zation
1262A T ADD ON-STAB. Diff. Prot 2 .. 250 Cycle; ∞ 15 Cycle Duration of Add-on Stabi-
lization
1263A CROSSB. ADD ON Diff. Prot 2 .. 1000 Cycle; 0; ∞ 15 Cycle Time for Cross-blocking
Add-on Stabiliz.
1271 2. HARMONIC Diff. Prot 10 .. 80 % 15 % 2nd Harmonic Content in
I-DIFF
1272A CROSSB. 2. HARM Diff. Prot 2 .. 1000 Cycle; 0; ∞ 3 Cycle Time for Cross-blocking
2nd Harm.
1276 n. HARMONIC Diff. Prot 10 .. 80 % 30 % n-th Harmonic Content in
I-DIFF
1277A CROSSB. n.HARM Diff. Prot 2 .. 1000 Cycle; 0; ∞ 0 Cycle Time for Cross-blocking n-
th Harm.
1278A IDIFFmax n.HM Diff. Prot 0.5 .. 20.0 I/InO 1.5 I/InO Limit IDIFFmax of n-th
Harm.Restraint
1281 I-DIFF> MON. Diff. Prot 0.15 .. 0.80 I/InO 0.20 I/InO Pickup Value of diff.
Current Monitoring
1282 T I-DIFF> MON. Diff. Prot 1 .. 10 sec 2 sec T I-DIFF> Monitoring Time
Delay
1283A Inst. Idiff Rec Diff. Prot NO
YES
NO Fault record with inst. diff
current
1300 Blocked w. CWA Diff. Prot ON
OFF
ON Blocking with CWA
1301 REF PROT. REF OFF
ON
Block relay
OFF Restricted Earth Fault
Protection
1311 I-REF> REF 0.05 .. 2.00 I/InS 0.15 I/InS Pick up value I REF>
1312A T I-REF> REF 0.00 .. 60.00 sec; ∞ 0.00 sec T I-REF> Time Delay
1313A SLOPE REF 0.00 .. 0.95 0.00 Slope of Charac. I-REF> =
f(I-SUM)
1401 REF PROT. REF 2 OFF
ON
Block relay
OFF Restricted Earth Fault
Protection
1411 I-REF> REF 2 0.05 .. 2.00 I/InS 0.15 I/InS Pick up value I REF>
1412A T I-REF> REF 2 0.00 .. 60.00 sec; ∞ 0.00 sec T I-REF> Time Delay
1413A SLOPE REF 2 0.00 .. 0.95 0.00 Slope of Charac. I-REF> =
f(I-SUM)
1701 COLDLOAD PICKUP ColdLoadPickup OFF
ON
OFF Cold-Load-Pickup Func-
tion
Functions, Settings, Information
F.2 Settings
SIPROTEC 4, 7UT6x, Manual 563
C53000-G1176-C230-5, Edition 09.2016
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