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Function
2.1 ATS
Note
1, When the parameter 0214 PT Connection of Line2 is set to one of the 6 options of Va transformer, Vb
transformer, Vc transformer, Va-b transformer, Vb-c transformer, Vc-a transformer, the signal of 17821
Line2 Live Voltage will be taken as the Ready condition of Line1->Line2. When the parameter set to Not
connected, the signal of 17821 Line2 Live Voltage will not be taken as the Ready condition of Line1->Line2
anymore.
2, The voltage thresholds values are phase-phase value, not phase value.
3, The dropout threshold of live voltage is 0.95.
4, 17864 >NonManu.Op.CB1 will be checked only when it is configured to a BI in DIGSI matrix. Otherwise the
ATS logic will not check this signal.
Above notes are valid in next logic diagrams! And they will not be mentioned again..
Figure 2-8
Pick up and CB Operation Logic of Transfer Mode Line1->Line2
Note
17868 >B1 MCB Closed and 17869 >B2 MCB Closed work in pickup logic of Line1 -> Line2 on the condition
that they are configured to the BIs in DIGSI matrix.
28
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012
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