Siemens SIPROTEC 7VU681 User Manual page 19

Function
2.1 ATS
The logic diagram of Voltage components and current components used in ATS logic is shown as followed.
Figure 2-2 Logic Diagram of Voltage Components and Current Components
SIPROTEC, 7VU681, User Manual 19
C53000-G1176-C368-1, Release Date 07.2012