ABB RER615 - Page 662

Figure 329: Signal scheme of autoreclosing operation initiated with protection start
signal
The autoreclosing shot is initiated with a start signal of the protection function
after the start delay time has elapsed. The autoreclosing starts when the Str 2 delay
shot 1 setting elapses.
Figure 330: Signal scheme of autoreclosing operation initiated with protection
operate signal
The autoreclosing shot is initiated with a trip signal of the protection function. The
autoreclosing starts when the protection operate delay time elapses.
Normally, all trip and start signals are used to initiate an autoreclosing shot and
trip the circuit breaker. ACTIVE output indicates reclosing sequence in progress.
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.
Control functions
1MRS758755 C
662 REC615 & RER615
Technical Manual