Function
2.3 Monitor Function
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012
56
2.3
Monitor Function
When the rated frequency is 50Hz, the frequency operation range of supervision functions is 45Hz to 66Hz.
When the rated frequency is 60Hz, the frequency operation range of supervision functions is 55Hz to 66Hz.
2.3.1
PT Broken Wire Supervision
PT broken wire supervision contains busbar PT broken wire supervision and line PT broken wire supervision.
Figure 2-29
Logic Diagram of Busbar PT Broken Wire Supervision
Logic of busbar PT broken wire supervision:
1. UN is the secondary rated busbar voltage, that is
236 PT Rated Secondary Voltage Busbar
.
2. If Segment Single Busbar primary diagram is selected, then
U1N
and
U2N
will replace UN in the figure
above.
3. If the busbar is supplied by line1, ILine is
IL1
; if busbar is supplied by line2,ILine is
IL2
.
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 ...