Automatic Continuation Of The Reclosing Sequence; Thermal Overload Protection Holding The Auto-Reclosing Function Back; Setting Guidelines; Configuration - ABB Relion 670 Series Applications Manual

Section 13
Control
The Auto-Reclosing function will first receive a trip and initiate signal (RI) without any three-phase
signal (TR3P). The Auto-Reclosing function will start a single-phase reclosing, if programmed to do
so. At the evolving fault clearance there will be a new signal RI and three-pole trip information,
TR3P. The single-phase reclosing sequence will then be stopped, and instead the timer,
three-phase reclosing will be started from zero. The sequence will continue as a three-phase
reclosing sequence, if it is a selected alternative reclosing mode.
The second fault which can be single phase is tripped three phase because trip module (TR) in the
IED has an evolving fault timer which ensures that second fault is always tripped three phase. For
other types of relays where the relays do not include this function the output PREP3PH (or the
inverted PERMIT1PH) is used to prepare the other sub-system for three pole 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 (79) 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 114, figure
ON and OFF
These inputs can be connected to binary inputs or to a communication interface block for external
control.
RI
It should be connected to the trip output protection function, which starts the autorecloser for
1/2/3-phase operation (SMBRREC ,79) 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.
280
115 and figure 116 and default factory configuration for examples.
1MRK 511 358-UUS A
t1 3Ph , for
AutoCont = Enabled and
Application manual
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