ABB Relion 670 Series Applications Manual page 307

1MRK 511 401-UUS F
INHIBIT
To this input shall be connected signals that interrupt an auto reclosing cycle or prevent a start
from being accepted. Such signals can come from protection for a line connected shunt reactor,
from transfer trip receive, from back-up protection functions, busbar protection trip or from
breaker failure protection. When the circuit breaker open position is set to start the auto recloser,
then manual opening must also be connected here. The inhibit is often a combination of signals
from external IEDs via the I/O and internal functions. An OR-gate is then used for the combination.
MODEINT
The auto reclosing mode is selected with the
mode can be selected by connecting an integer, for example from function block B16I, to the
MODEINT input. The six possible modes are described in table 6 with their corresponding
MODEINT integer value. When a valid integer is connected to the input MODEINT the selected
ARMode setting will be invalid and the MODEINT input value will be used instead. The selected
mode is reported as an integer on the
ON and OFF
These inputs can be connected to binary inputs or to a communication interface block for external
control.
PLCLOST
This is intended for line protection permissive signal channel lost (fail) for example, PLC= Power
Line Carrier failure. It can be connected, when it is required to prolong the auto reclosing dead
time when communication is not working, that is, one line end might trip with a zone2 delay. If this
is used the auto recloser must also be started from zone2 time delayed trip.
RESET
Used to reset the auto recloser to start conditions. Possible hold by thermal overload protection
will be reset. Circuit breaker position will be checked and time settings will be restarted with their
set times.
RSTCOUNT
There is a counter for each type of auto reclosing and one for the total number of circuit breaker
close commands issued. All counters are reset with the
command.
SKIPHS
The high-speed auto reclosing sequence can be skipped and be replaced by normal auto reclosing
sequence by activating
replacement is done for the 1st shot.
RI
START input should be connected to the trip function (SMPPTRC) output, which starts the
The
auto recloser for 1/2/3-phase operation. It can also be connected to a binary input for start from
an external contact. A logical OR-gate can be used to combine the number of start sources.
Bay control REC670
Application manual
MODE output.
SKIPHS input before the STARTHS high-speed start input is activated. The
StartByCBOpen is used, the circuit breaker open condition shall also be
If
RI input.
connected to the
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ARMode setting. As an alternative to the setting, the
RSTCOUNT input or by an IEC 61850
Section 14
Control
301