Automatic Continuation Of The Auto Reclosing Sequence - ABB REC670 Applications Manual

Section 14
Control
14.2.2.21
14.2.2.22
14.2.3
14.2.3.1
336
then be stopped, and instead the timer, t1 3Ph, for three-pole auto reclosing will be
started from zero. The sequence will continue as a three-pole auto reclosing sequence,
if it is a selected alternative reclosing mode. The second fault which can be single-
phase is tripped three-pole because the trip function (SMPPTRC) in the IED has an
evolving fault timer which ensures that second fault is always tripped three-pole. For
other types of relays where the relays do not include this function, the PREP3PH
output (or the inverted PERMIT1PH output) is used to prepare the other sub-system for
three-phase 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 starts (trips) will be three
phase.

Automatic continuation of the auto reclosing sequence

The auto recloser can be programmed to proceed to the next auto reclosing shots (if
multiple shots are selected) even if start signals are not received from protection
functions, but the circuit breaker is still not closed. This is done by setting AutoCont =
Enabled and tAutoContWait to the required delay for the function to proceed without a
new start.
Thermal overload protection holding the auto recloser back
If the THOLHOLD input (thermal overload protection holding auto reclosing back) is
activated, it will keep the auto recloser on a hold until it is reset. There may thus be a
considerable delay between start of the auto recloser and the breaker closing 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 recloser on hold
for a longer or shorter period.
Setting guidelines
Configuration
Use the PCM600 configuration tool to configure signals.
Auto recloser 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 117, Figure
examples.
118 and Figure 119 and default factory configuration for
1MRK 511 401-UUS A
M12391-223 v5
M12391-226 v3
IP14929-1 v1
M12399-3 v3
M12399-7 v10
Bay control REC670 2.2 ANSI
Application manual