Siemens 7SC80 Manual page 104

Functions
2.2 Overcurrent Protection 50, 51, 50N, 51N
Addr. Parameter
1345 51N-3 PICKUP
1346 51N-3 T DIAL
1347 51N-3 Drop-out
1348 51N-3 IEC Cur.
1349 51N-3 T adder
1350A 51N-4 measure.
1351 51N-4 PICKUP
1352 51N-4 T DIAL
1353 51N-4 Drop-out
1354 51N-4 IEC Cur.
1355 51N-4 T adder
1356 51N-1 ANSI Cur.
1357 51N-1 Rec. Cur.
104
C Setting Options
1A 0.05 .. 4.00 A; ∞
5A 0.25 .. 20.00 A; ∞
0.01 .. 20.00 sec; ∞
Instantaneous
Disk Emulation
NO
Normal Inverse
Very Inverse
Extremely Inv.
Long Inverse
0.00 .. 30.00 sec
Fundamental
True RMS
1A 0.05 .. 4.00 A; ∞
5A 0.25 .. 20.00 A; ∞
0.01 .. 20.00 sec; ∞
Instantaneous
Disk Emulation
NO
Normal Inverse
Very Inverse
Extremely Inv.
Long Inverse
0.00 .. 30.00 sec
NO
Very Inverse
Inverse
Short Inverse
Long Inverse
Moderately Inv.
Extremely Inv.
Definite Inv.
NO
Curve A (101)
Curve B (117)
Curve C (133)
Curve D (116)
Curve E (132)
Curve K (162)
Curve N (104)
Curve R (105)
Curve W (138)
Curve 2 (135)
Curve 3 (140)
Curve 8 (113)
Curve 8* (111)
Curve 9 (131)
Curve 11 (141)
Default Setting Comments
0.20 A 51N-3 Pickup
1.00 A
0.20 sec 51N-3 Time Dial
Disk Emulation Drop-Out Characteristic
Normal Inverse 51N-3 IEC Curve
0.00 sec Constant time adder 51N-3
Fundamental 51N-4 measurement of
0.20 A 51N-4 Pickup
1.00 A
0.20 sec 51N-4 Time Dial
Disk Emulation Drop-Out Characteristic
Normal Inverse 51N-4 IEC Curve
0.00 sec Constant time adder 51N-4
NO 51N-1 ANSI Curve
NO 51N-1 Recloser Curve
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017