Application C: 2S - 1T - Si - Siemens SENTRON ATC6500 Manual

3.1.4.3 Application C: 2S – 1T – SI
SRC1 (kVA) = SRC2 (kVA)
In this application three motor-driven circuit breakers are used. A distinction is made
between prioritized load and non-prioritized load (NPL). In this case, both loads are supplied
by one source each in normal circumstances (both sources available). If one source fails, the
prioritized and non-prioritized loads are supplied by the source that remains available.
The states can be obtained from the table:
Source 1 (SRC1)
0
0
1
1
0 = Infeed source not available
1 = Infeed source available
Note
In this case the priority of the sources is unimportant.
See also
Parameterization (Page 155)
Transfer (Page 227)
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
Source 2 (SRC2) Breaker 1 (BRK 1)
0 Open
1 Open
0 Closed
1 Closed
Breaker 2 (BRK 2) Tie breaker (TB)
Open Open
Closed Closed
Open Closed
Closed Open
Applications
3.1 Transfer control
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