Functions
2.2 Overcurrent Protection 50, 51, 50N, 51N
Addr.
Parameter
1305
50N-1 DELAY
1307
51N PICKUP
1308
51N TIME DIAL
1309
51N TIME DIAL
1310
51N Drop-out
1311
51N IEC CURVE
1312
51N ANSI CURVE
1313A
MANUAL CLOSE
1314A
50N-2 active
1315A
50N T DROP-OUT
1316A
50N-3 active
1317
50N-3 PICKUP
1318
50N-3 DELAY
1319A
50N-3 measurem.
1320A
50N-2 measurem.
1321A
50N-1 measurem.
1322A
51N measurem.
2201
INRUSH REST.
2202
2nd HARMONIC
2203
CROSS BLOCK
2204
CROSS BLK TIMER
2205
I Max
84
C
Setting Options
0.00 .. 60.00 sec; ∞
1A
0.05 .. 4.00 A
5A
0.25 .. 20.00 A
0.05 .. 3.20 sec; ∞
0.50 .. 15.00 ; ∞
Instantaneous
Disk Emulation
Normal Inverse
Very Inverse
Extremely Inv.
Long Inverse
Very Inverse
Inverse
Short Inverse
Long Inverse
Moderately Inv.
Extremely Inv.
Definite Inv.
50N-3 instant.
50N-2 instant.
50N-1 instant.
51N instant.
Inactive
Always
0.00 .. 60.00 sec
Always
0.25 .. 35.00 A; ∞
0.00 .. 60.00 sec; ∞
Fundamental
True RMS
Instantaneous
Fundamental
True RMS
Fundamental
True RMS
Fundamental
True RMS
OFF
ON
10 .. 45 %
NO
YES
0.00 .. 180.00 sec
1A
0.30 .. 25.00 A
5A
1.50 .. 125.00 A
Default Setting
0.50 sec
50N-1 Time Delay
0.20 A
51N Pickup
1.00 A
0.20 sec
51N Time Dial
5.00
51N Time Dial
Disk Emulation
Drop-Out Characteristic
Normal Inverse
IEC Curve
Very Inverse
ANSI Curve
50N-2 instant.
Manual Close Mode
Always
50N-2 active
0.00 sec
50N Drop-Out Time Delay
Always
50N-3 active
∞ A
50N-3 Pickup
0.05 sec
50N-3 Time Delay
Fundamental
50N-3 measurement of
Fundamental
50N-2 measurement of
Fundamental
50N-1 measurement of
Fundamental
51N measurement of
OFF
Inrush Restraint
15 %
2nd. harmonic in % of fun-
damental
NO
Cross Block
0.00 sec
Cross Block Time
7.50 A
Maximum Current for
Inrush Restraint
37.50 A
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A5, Release date 11.2012
Comments