3-Circuit-breaker configuration with pre-selection
• One busbar
• Transfer takes place between each feeder
• Three instances of HSABTC function are required for this variant. The first
instance performs the transfer operation between feeder 1 and feeder 2. The
second instance performs the transfer operation between feeder 1 and feeder 3.
The third instance performs the transfer operation between feeder 2 and feeder
3.
9.12.7 Signals
9.12.7.1 HSABTC Input signals
Table 1608: HSABTC Input signals
Name Type Default Description
I3P1 SIGNAL - Three-phase currents
1
I3P2 SIGNAL - Three-phase currents
2
U3P1 SIGNAL - Three-phase voltages
(Bus B side)
U3P2 SIGNAL - Three-phase voltages
(Bus A side)
U3P_BB SIGNAL - Analog input
BLOCK BOOLEAN 0=False Block signal for acti-
vating the blocking
mode
TRANSFER_ON BOOLEAN 0=False Level sensitive signal
for enabling transfer
ACT_LKOUT BOOLEAN 0=False Activate transfer lock-
out until function is
reset
INIT_MANUAL BOOLEAN 0=False Manual transfer ini-
tiation
INIT_TR_1_2 BOOLEAN 0=False Transfer initiation
from feeder 1 to feed-
er 2
INIT_TR_2_1 BOOLEAN 0=False Transfer initiation
from feeder 2 to feed-
er 1
DISA_INIT BOOLEAN 0=False Disable transfer ini-
tiation
DISA_1_2 BOOLEAN 0=False Disable transfer from
feeder 1 to feeder 2
Table continues on the next page
1MRS759142 F Control functions
REX640
Technical Manual
1797
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