ABB REF615 Applications Manual page 93

1MRS756378 D
REF615
Application Manual
GUID-86A27183-AE21-4420-AA8D-B53A43C77BBE V1 EN
Figure 44: Arc protection
The autorecloser is configured to be initiated by operate signals from a number of
protection stages through the INIT1-5 inputs. It is possible to create individual
autoreclose sequences for each input.
The autoreclose function can be blocked with the INHIBIT_RECL input. As a default,
the operation of some selected protection functions are connected to this input. A
control command to the circuit breaker, either local or remote, also blocks the
autoreclose function via the CBXCBR-selected signal.
The circuit breaker availability for the autoreclosure sequence is expressed with the
binary input 4 (X110:6-7) by connecting the input signal to the CB_RDY input. In
case this signal is completely removed from the autoreclose function block with SMT,
the function assumes that the breaker is available all the time.
Section 3
REF615 variants
87