Siemens SIPROTEC 7VU681 User Manual page 42

Function
2.1 ATS
Figure 2-22 Pickup and CB Operation Logic of T2->T1
Note
1.17868 >B1 MCB Closed and 17869 >B2 MCB Closed work in the pickup logic of Transformer2-
>Transformer1 when they are configured to the BIs in DIGSI matrix. Otherwise, the pickup logic will not check
them.
2.8926 Transformer Energization Time is the energized time of the transformer when connected to the power
supply without load.
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SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012