The autoreclosing shot is initiated with a trip signal of the protection function. The
autoreclosing picks up when the protection trip delay time elapses.
Normally, all trip and pickup signals are used to initiate an autoreclosing shot and trip the
circuit breaker. If any of the input signals
INIT_X
or
DEL_INIT_X
are used for
blocking, the corresponding bit in the
Tripping line
setting must be FALSE. This is to
ensure that the circuit breaker does not trip from that signal, that is, the signal does not
activate the
OPEN_CB
output. The default value for the setting is "63", which means that
all initiation signals activate the
OPEN_CB
output. The lowest bit in the
Tripping line
setting corresponds to the
INIT_1
input, the highest bit to the
INIT_6
line.
9.2.4.2
Shot initiation
A070869 V1 EN
Figure 242:
Example of an autoreclosing program with a reclose scheme matrix
In the AR function, each shot can be programmed to locate anywhere in the reclose
scheme matrix. The shots are like building blocks used to design the reclose program. The
building blocks are called CBBs. All blocks are alike and have settings which give the
1MRS240050-IB C
Section 9
Control functions
REF615R
465
Technical Manual
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