Siemens SIPROTEC 7VU681, User Manual

Page: 47 / 112

Function
2.2 Protection
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012 47
2.2 Protection
Protection functions can be set on or set off by the 226 Protection Functions .
When the rated frequency is 50Hz, the operation range of frequency of protection functions is 20Hz to 66Hz.
When the rated frequency is 60Hz, the operation range of frequency of protection functions is 25Hz to 66Hz.
Protection functions will be unavailable if frequency is beyond the range.
The setting values and their default values of current related parameters as following are under a rating of 1A
rated secondary current. When the rated secondary current is 5A, the values should be multiplied by 5.
17915 Transformer2 -> Transformer1
Failed OUT 200 39
17804 Load Shifting Pickup OUT
17805 Load Shifting Succeeded OUT
17806 Load Shifting Failed OUT
18003 Busbar Load Shifting is Actived OUT
18004 >Neighboring ATS is Ready SP
17900 >Start Load-Shedding Line1 SP
17901 >Start Load-Shedding Line2 SP
17733 Load-Shedding Pickup OUT
17734 Load-Shedding Trip (TimeDelay1) OUT 200 41
17735 Load-Shedding Trip (TimeDelay2) OUT 200 42
17974 L1->L2 ON/FF IntSP
17975 L2->L1 ON/FF IntSP
17976 B1->B2 ON/FF IntSP
17977 B2->B1 ON/FF IntSP
17978 T1->T2 ON/FF IntSP
17979 T2->T1 ON/FF IntSP
17980 B1->B2 LSON/OFF IntSP
18000 B2->B1 LSON/OFF IntSP
Addr. Information Type Function No. Info. No.