Load fault detections on busbar, such as overcurrent and earth-fault functions are
connected as grouped protection input to BLOCK. Auto mode OFF/ON is connected to
input BLOCK.
GUID-B9F3739B-FBA6-4F2D-AD69-02B026229C77 V1 EN
Figure 355: Signal scheme illustrating an automatic transfer switch and an
automatic reconnection operation caused by a temporary under-
voltage on the preferred bus 1 (all other excluded inputs are "FALSE"
during the sequence)
9.5.6 Signals
Table 676: ATSABTC Input signals
Name
Type Default Description
BLOCK BOOLEAN 0=False Blocking of function
UN_U_BUS1 BOOLEAN 0=False Under-voltage on bus 1
UN_U_BUS2 BOOLEAN 0=False Under-voltage on bus 2
CB1_POSOPEN BOOLEAN 0=False Circuit breaker open status for bus 1
CB1_POSCLOSE BOOLEAN 0=False Circuit breaker close status for bus 1
CB2_POSOPEN BOOLEAN 0=False Circuit breaker open status for bus 2
CB2_POSCLOSE BOOLEAN 0=False Circuit breaker close status for bus 2
1MRS758755 A Section 9
Control functions
REC615 and RER615 671
Technical Manual
To Next Page
Loading...
