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The ATS is blocked under the certain conditions, its logic is shown as followed.
Figure 2-4
Simplified Logic Diagram of ATS
2.1.1.1 Settings
Addr.
0159
0160
Power System Data 1-> Power System Data
0211
0213
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012
Parameter
Automatic Transfer System Disabled
Protection Function
Rated Frequency
PT Connection of Line1
Setting Options
Enabled
Disabled
Enabled
50Hz
60Hz
Va transformer
Vb transformer
Vc transformer
Va-b transformer
Vb-c transformer
Vc-a transformer
Not connected
Default Setting
Comments
Enabled
Disabled
50Hz
Va-b transformer
Function
2.1 ATS
21
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