Automatic Continuation Of The Reclosing Sequence; Thermal Overload Protection Holding The Auto-Reclosing Function Back; Setting Guidelines; Configuration - ABB Relion REC670 Applications Manual

Section 13
Control
tripping. This signal will, for evolving fault situations be activated a short time after the first
trip has reset and will thus ensure that new trips will be three phase.
13.2.2.21

Automatic continuation of the reclosing sequence

SMBRREC function can be programmed to proceed to the following reclosing shots (if multiple
shots are selected) even if start signals are not received from the protection functions, but the
breaker is still not closed. This is done by setting parameter
tAutoContWait to the required delay for the function to proceed without a new start.
13.2.2.22

Thermal overload protection holding the auto-reclosing function back

If the input THOLHOLD (thermal overload protection holding reclosing back) is activated, it will
keep the reclosing function on a hold until it is reset. There may thus be a considerable delay
between start of Auto-Reclosing and reclosing command to the circuit-breaker. An external
logic limiting the time and sending an inhibit to the INHIBIT input can be used. The input can
also be used to set the Auto-Reclosing on hold for a longer or shorter period.
13.2.3

Setting guidelines

13.2.3.1

Configuration

Use the PCM600 configuration tool to configure signals.
Autorecloser function parameters are set via the local HMI or Parameter Setting Tool (PST).
Parameter Setting Tool is a part of PCM600.
Recommendations for input signals
Please see figure 101, figure
ON and OFF
These inputs can be connected to binary inputs or to a communication interface block for
external control.
START
It should be connected to the trip output protection function, which starts the autorecloser for
1/2/3-phase operation (SMBRREC) function. 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.
STARTHS, Start High-speed auto-reclosing
It may be used when one wants to use two different dead times in different protection trip
operations. This input starts the dead time
this input is without a synchronization check.
INHIBIT
To this input shall be connected signals that interrupt a 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
248
102 and figure
StartByCBOpen is used, the CB Open condition shall also be connected to the
If
input START.
AutoCont = On and
103 and default factory configuration for examples.
t1 3PhHS . High-speed reclosing shot 1 started by
1MRK 511 358-UEN A
M12391-223 v4
M12391-226 v2
IP14929-1 v1
M12399-3 v2
M12399-7 v8
Application manual