Function
2.3 Monitor Function
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012
58
2.3.2
Busbar Voltage Sequence Supervision
Busbar, busbar1 and busbar2 have the same voltage sequence supervision logic. Take busbar for example,
the logic is as followed.
If Va-b is prior to Vb-c, Vb-c is prior to Vc-a, Vc-a is prior to Va-b, the phase sequence is right, otherwise
warning message
17993 Failure: Phase Sequence Busbar Voltage
will be released in 5 seconds. The
precondition of this logic is the phase-phase voltages are > 80%
UN. UN
is the value of
236 PT Rated
Secondary Voltage Busbar
.
2.3.2.1
Settings
Please reference Power System Data 1 to get other settings.
2.3.2.2
Information List
■
Addr.
Settings
Setting Options
Default Setting
Comments
Supervision
9102
Busbar Voltage
Sequence Supervision
ON
OFF
ON
No.
Information
Type
Function No.
Inf. No.
17993
Fail Ph.Seq.V.B.
OUT
17994
FailPh.Seq.V.B1
OUT
17995
FailPh.Seq.V.B2
OUT
Содержание SIPROTEC 7VU681
Страница 8: ...Preface SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 8 ...
Страница 12: ...Contents SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 12 ...
Страница 100: ...Literature SIPROTEC 7VU683 User Manual C53000 G1176 C368 1 Release Date 07 2012 100 ...
Страница 110: ...Appendix A 4 Dimension SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 110 ...
Страница 112: ...Index SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 112 ...