ABB RELION REB670, Руководство по применению

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breaker not charged” or “not ready”, an inverter can be inserted in front of the
CBREADY input.
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 ARMode setting. As an alternative to the
setting, 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
MODE output.
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
RSTCOUNT
input or by an IEC 61850 command.
Section 12
1MRK 505 370-UUS A
Control
328 Busbar protection REB670 2.2 ANSI
Application manual