Operation Principle; Start Auto-Reclosing And Conditions For Start Of A Reclosing Cycle - ABB REC650 Technical Manual

1MRK 511 287-UEN A
Table 174: SMBRREC Group settings (advanced)
Name Values (Range)
NoOfShots
StartByCBOpen
CBAuxContType
CBReadyType
t2 3Ph
t3 3Ph
t4 3Ph
t5 3Ph
tInhibit
Follow CB
AutoCont
tAutoContWait
UnsucClByCBChk
BlockByUnsucCl
ZoneSeqCoord
10.2.6
10.2.6.1
Technical manual
Unit
1 -
2
3
4
5
Off -
On
NormClosed -
NormOpen
CO -
OCO
0.00 - 6000.00 s
0.00 - 6000.00 s
0.00 - 6000.00 s
0.00 - 6000.00 s
0.000 - 60.000 s
Off -
On
Off -
On
0.000 - 60.000 s
NoCBCheck -
CB check
Off -
On
Off -
On

Operation principle

Start auto-reclosing and conditions for start 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 START input.
For a new auto-reclosing cycle to be started, a number of conditions need to be met.
They are linked to dedicated inputs. The inputs are:
• CBREADY: CB ready for a reclosing cycle, for example, charged operating gear
• CBPOS: to ensure that the CB was closed when the line fault occurred and start
was applied
• No blocking or inhibit signal shall be present.
Step Default
- 1
- Off
- NormOpen
- CO
0.01 30.00
0.01 30.00
0.01 30.00
0.01 30.00
0.001 5.000
- Off
- Off
0.001 2.000
- NoCBCheck
- Off
- Off
Section 10
Description
Maximum number of reclosing shots 1-5
To be set ON if AR is to be started by CB
open position
Select CB auxilary contact type NC/NO for
CBPOS input
Select type of circuit breaker ready signal
CO/OCO
Open time for shot 2, three-phase
Open time for shot 3, three-phase
Open time for shot 4, three-phase
Open time for shot 5, three-phase
Inhibit reclosing reset time
Advance to next shot if CB has been
closed during dead time
Continue with next reclosing-shot if
breaker did not close
Wait time after close command before
proceeding to next shot
Unsuccessful closing signal obtained by
checking CB position
Block AR at unsuccessful reclosing
Coordination of down stream devices to
local protection unit's AR
Control
229