ABB RELION REF615R Technical Manual page 475

1MRS240050-IB C
9.2.4.3
REF615R
Technical Manual
• Not allowed: no automatic initiation is allowed
• When the synchronization fails, the automatic initiation is carried out when the auto
wait time elapses and the reclosing is prevented due to a failure during the
synchronism check
• When the circuit breaker does not close, the automatic initiation is carried out if the
circuit breaker does not close within the wait close time after issuing the reclose
command
• Both: the automatic initiation is allowed when synchronization fails or the circuit
breaker does not close.
The Auto init parameter defines which INIT_X lines are activated in the
auto-initiation. The default value for this parameter is "0", which means
that no auto-initiation is selected.
A070871-ANSI V1 EN
Figure 244: Example of an auto-initiation sequence with synchronization failure in the
first shot and circuit breaker closing failure in the second shot
In the first shot, the synchronization condition is not fulfilled (SYNC is FALSE). When the
auto wait timer elapses, the sequence continues to the second shot. During the second
reclosing, the synchronization condition is fulfilled and the close command is given to the
circuit breaker after the second reclose time has elapsed.
After the second shot, the circuit breaker fails to close when the wait close time has
elapsed. The third shot is started and a new close command is given after the third reclose
time has elapsed. The circuit breaker closes normally and the reclaim time starts. When the
reclaim time has elapsed, the sequence is concluded successful.
Shot pointer controller
The execution of a reclose sequence is controlled by a shot pointer. It can be adjusted with
the SHOT_PTR monitored data.
Section 9
Control functions
469