Operation Principle - ABB REL650 series Technical Manual

1MRK 506 335-UUS A
Name Values (Range)
t2 3Ph 0.00 - 6000.00
t3 3Ph 0.00 - 6000.00
t4 3Ph 0.00 - 6000.00
t5 3Ph 0.00 - 6000.00
Extended t1 Disabled
Enabled
tExtended t1 0.000 - 60.000
tInhibit 0.000 - 60.000
Follow CB Disabled
Enabled
AutoCont Disabled
Enabled
tAutoContWait 0.000 - 60.000
UnsucClByCBChk NoCBCheck
CB check
BlockByUnsucCl Disabled
Enabled
ZoneSeqCoord Disabled
Enabled
11.3.6
11.3.6.1
11.3.6.2
Technical manual
Unit Step
s 0.01
s 0.01
s 0.01
s 0.01
- -
s 0.001
s 0.001
- -
- -
s 0.001
- -
- -
- -

Operation principle

Auto-reclosing operation
Operation of the automatic reclosing can be set to Off or On via the setting parameters and
through external control. With the setting Operation = Enabled, the function is activated
while with the setting Operation = Disabled the function is deactivated. With the setting
Operation = External ctrl, the activation/deactivation is made by input signal pulses, for
example, from a control system.
When the function is set Enabled and is operative the output SETON is activated (high).
Other input conditions such as 52a and CBREADY must also be fulfilled. At this point the
automatic recloser is prepared to start the reclosing cycle and the output signal READY
on the STBRREC (79) function block is activated (high).
Initiate auto-reclosing and conditions for initiation of a reclosing cycle
The usual way in which to start a reclosing cycle, or sequence, is to start it when a line
protection tripping has occurred, by applying a signal to the PICKUP input.
Default Description
30.00 Open time for shot 2, three-phase
30.00 Open time for shot 3, three-phase
30.00 Open time for shot 4, three-phase
30.00 Open time for shot 5, three-phase
Disabled Extended open time at loss of permissive
channel Off/On
0.500 3Ph dead time is extended with this value at
loss of permissive channel
5.000 Inhibit reclosing reset time
Disabled Advance to next shot if CB has been closed
during dead time
Disabled Continue with next reclosing-shot if breaker did
not close
2.000 Wait time after close command before
proceeding to next shot
NoCBCheck Unsuccessful closing signal obtained by
checking CB position
Disabled Block AR at unsuccessful reclosing
Disabled Coordination of down stream devices to local
protection unit's AR
Disabled and Enabled
Section 11
Control
379