Siemens SIPROTEC 7VU681, User Manual

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Function
2.2 Protection
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012 53
1.
When the parameter 9020 Phase O/C for Busbar Energization is set to ON and bus-tie CB is closed, Phase
overcurrent for busbar energization protection will start to run. The running time is set by the parameter
9019A Active Time for Busbar Energization.
2. Compound voltage control can be enabled or disabled by setting the parameter 9021 Compound Voltage
Control to YES or NO .
3. PT broken wire cannot block phase overcurrent for busbar energization protection.
4.
After the trip signal is released, the dropout of the voltage signal cannot reset the trip signal, only current
dropout can reset the trip signal.
2.2.3.1 Settings
2.2.3.2 Information List
Addr. Settings Setting Options Default Setting Comments
Protection Functions -> General
9020 Phase O/C for Busbar
Energization ON
OFF OFF
9019A Active time for Busbar
Energization 0.01s..600.00s 5.00s
Protection Functions -> Voltage Control
9002 Ph-Ph Undervoltage
Threshold 1V..125V, 0V 70V
9003 U2 Overvoltage Threshold
1V..125V,
∞ 8V
Protection Functions -> Ph. O/C Energiz.
9021 Compound Voltage Control Yes
No No
9024 Phase O/C-1 for Busbar
Energ. 0.1A..35A 2A
9025 Phase O/C-1 Time Delay for
Busbar Energization
0s..60s,
∞ 0.5s
9026 Phase O/C -2 for Busbar
Energization 0.1A..35A 4A
9027 Phase O/C -2 Time Delay for
Busbar Energ.
0s..60s,
∞ 0.1s
No. Information Type Funcion No. Inf. No.
17942 Ph.O/C Ene.ACT. OUT
17943 Ph.O/C Ene. OFF OUT
17944 Ph.O/C Ene. BLK OUT
17928 Ph.O/C-1Ener.PU OUT
17929 Ph.O/C-1Ene.Tr. OUT 200 54
17930 Ph.O/C-2Ener.PU OUT
17937 >BLK Ph. O/C En SP 200 56
17983 Ph.O/CEn.ON/OFF IntSP 200 87