9.4.11 Technical revision history
Table 692: DARREC Technical revision history
Technical revision Change
B
The PROT_DISA output removed and re-
moved the related settings
C
The default value of the
CB closed Pos status
setting changed from "True" to "False"
D
SHOT_PTR output range 0...7 (earlier 0...6)
E
Monitored data ACTIVE transferred to be ACT
visible output. SHOT_PTR output range 1...7.
F
Internal improvement
9.5 Automatic transfer switch ATSABTC
9.5.1 Identification
Description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE
C37.2 device number
Automatic transfer switch ATSABTC ATSABTC ATSABTC
9.5.2 Function block
ATSABTC
OPEN_CB2
CLOSE_CB1
CLOSE_CB2
INPRO
BLKD_AL
CB1_POSOPEN
CB1_POSCLOSE
CB2_POSOPEN
CB2_POSCLOSE
UN_U_BUS1
UN_U_BUS2
BLOCK
OPEN_CB1
Figure 347: Function block
9.5.3 Functionality
The automatic transfer switch function ATSABTC acts as a back-up in case of
interruption in the active supply path. In the application, voltages are measured
on bus 1 and bus 2, while the currents are measured on the common busbar. An
undervoltage on the active bus automatically switches over to the other healthy bus.
Control functions
1MRS758755 C
690 REC615 & RER615
Technical Manual
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