Functions
2.2 Overcurrent Protection 50, 51, 50N, 51N
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
75
1209 51 TIME DIAL 0.50 .. 15.00 ; ∞ 5.00 51 Time Dial
1210 51 Drop-out Instantaneous
Disk Emulation
Disk Emulation Drop-out characteristic
1211 51 IEC CURVE Normal Inverse
Very Inverse
Extremely Inv.
Long Inverse
Normal Inverse IEC Curve
1212 51 ANSI CURVE Very Inverse
Inverse
Short Inverse
Long Inverse
Moderately Inv.
Extremely Inv.
Definite Inv.
Very Inverse ANSI Curve
1213A MANUAL CLOSE 50-3 instant.
50-2 instant.
50 -1 instant.
51 instant.
Inactive
50-2 instant. Manual Close Mode
1214A 50-2 active Always Always 50-2 active
1215A 50 T DROP-OUT 0.00 .. 60.00 sec 0.00 sec 50 Drop-Out Time Delay
1216A 50-3 active Always Always 50-3 active
1217 50-3 PICKUP 1A 1.00 .. 35.00 A; ∞∞A 50-3 Pickup
5A 5.00 .. 175.00 A; ∞∞A
1218 50-3 DELAY 0.00 .. 60.00 sec; ∞ 0.00 sec 50-3 Time Delay
1219A 50-3 measurem. Fundamental
True RMS
Instantaneous
Fundamental 50-3 measurement of
1220A 50-2 measurem. Fundamental
True RMS
Fundamental 50-2 measurement of
1221A 50-1 measurem. Fundamental
True RMS
Fundamental 50-1 measurement of
1222A 51 measurem. Fundamental
True RMS
Fundamental 51 measurement of
1301 FCT 50N/51N ON
OFF
ON 50N, 51N Ground Time
Overcurrent
1302 50N-2 PICKUP 1A 0.05 .. 35.00 A; ∞ 0.50 A 50N-2 Pickup
5A 0.25 .. 175.00 A; ∞ 2.50 A
1303 50N-2 DELAY 0.00 .. 60.00 sec; ∞ 0.10 sec 50N-2 Time Delay
1304 50N-1 PICKUP 1A 0.05 .. 35.00 A; ∞ 0.20 A 50N-1 Pickup
5A 0.25 .. 175.00 A; ∞ 1.00 A
1305 50N-1 DELAY 0.00 .. 60.00 sec; ∞ 0.50 sec 50N-1 Time Delay
1307 51N PICKUP 1A 0.05 .. 4.00 A 0.20 A 51N Pickup
5A 0.25 .. 20.00 A 1.00 A
1308 51N TIME DIAL 0.05 .. 3.20 sec; ∞ 0.20 sec 51N Time Dial
Addr. Parameter C Setting Options Default Setting Comments