Automatic Continuation Of The Auto Reclosing Sequence - ABB REL670 2.2 IEC Applications Manual

1MRK 506 369-UEN B
15.2.2.21
15.2.2.22
15.2.3
15.2.3.1
Line distance protection REL670 2.2 IEC
Application manual
(SMPPTRC) in the IED has an evolving fault timer which ensures that the second
fault is always tripped three-phase. 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 = On 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 309, Figure
for examples.
BLKOFF
Used to unblock the auto recloser when it has been blocked due to activating
BLKON input or by an unsuccessful auto reclosing attempt if the BlockByUnsucCl
setting is set to On.
BLKON
Used to block the auto recloser, for example, when certain special service
conditions arise. When used, blocking must be reset with BLKOFF.
310 and Figure 311 and default factory configuration
Section 15
Control
M12391-223 v5
M12391-226 v3
IP14929-1 v1
M12399-3 v3
M12399-7 v10
625