Siemens SIPROTEC 7SJ61, Руководство пользователя, Страница: 154 / 454

Functions
2.9 Ground Fault Protection 50N(s), 51N(s)
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
154
2.9.4 Settings
Addresses which have an appended "A" can only be changed with DIGSI, under "Display Additional Settings".
The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec-
ondary nominal current of the current transformer.
Addr. Parameter C Setting Options Default Setting Comments
3101 Sens. Gnd Fault OFF
ON OFF (Sensitive) Ground Fault
3113 50Ns-2 PICKUP 0.001 .. 1.500 A 0.300 A 50Ns-2 Pickup
3113 50Ns-2 PICKUP 1A 0.05 .. 35.00 A 10.00 A 50Ns-2 Pickup
5A 0.25 .. 175.00 A 50.00 A
3114 50Ns-2 DELAY 0.00 .. 320.00 sec;
∞
1.00 sec 50Ns-2 Time Delay
3117 50Ns-1 PICKUP 0.001 .. 1.500 A 0.100 A 50Ns-1 Pickup
3117 50Ns-1 PICKUP 1A 0.05 .. 35.00 A 2.00 A 50Ns-1 Pickup
5A 0.25 .. 175.00 A 10.00 A
3118 50Ns-1 DELAY 0.00 .. 320.00 sec;
∞
2.00 sec 50Ns-1 Time delay
3119 51Ns PICKUP 0.001 .. 1.400 A 0.100 A 51Ns Pickup
3119 51Ns PICKUP 0.003 .. 0.500 A 0.004 A 51Ns Pickup
3119 51Ns PICKUP 1A 0.05 .. 4.00 A 1.00 A 51Ns Pickup
5A 0.25 .. 20.00 A 5.00 A
3120 51NsTIME DIAL 0.10 .. 4.00 sec;
∞
1.00 sec 51Ns Time Dial
3121A 50Ns T DROP-OUT 0.00 .. 60.00 sec 0.00 sec 50Ns Drop-Out Time
Delay
3127 51Ns I T min 0.003 .. 1.400 A 1.333 A 51Ns Current at const.
Time Delay T min
3127 51Ns I T min 1A 0.05 .. 20.00 A 15.00 A 51Ns Current at const.
Time Delay T min
5A 0.25 .. 100.00 A 75.00 A
3128 51Ns I T knee 0.003 .. 0.650 A 0.040 A 51Ns Current at Knee
Point
3128 51Ns I T knee 1A 0.05 .. 17.00 A 5.00 A 51Ns Current at Knee
Point
5A 0.25 .. 85.00 A 25.00 A
3129 51Ns T knee 0.20 .. 100.00 sec 23.60 sec 51Ns Time Delay at Knee
Point
3131 M.of PU TD 1.00 .. 20.00 MofPU;
∞
0.01 .. 999.00 TD
Multiples of PU Time-
Dial
3132 51Ns TD 0.05 .. 1.50 0.20 51Ns Time Dial
3140 51Ns Tmin 0.00 .. 30.00 sec 1.20 sec 51Ns Minimum Time
Delay
3140 51Ns T min 0.10 .. 30.00 sec 0.80 sec 51Ns Minimum Time
Delay
3141 51Ns Tmax 0.00 .. 30.00 sec 5.80 sec 51Ns Maximum Time
Delay