ABB REC650 ANSI, Technical Manual

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Name Values (Range) Unit Step Default Description
CBReadyType CO
OCO
- - CO Select type of circuit breaker ready signal
CO/OCO
t2 3Ph 0.00 - 6000.00 s 0.01 30.00 Open time for shot 2, three-phase
t3 3Ph 0.00 - 6000.00 s 0.01 30.00 Open time for shot 3, three-phase
t4 3Ph 0.00 - 6000.00 s 0.01 30.00 Open time for shot 4, three-phase
t5 3Ph 0.00 - 6000.00 s 0.01 30.00 Open time for shot 5, three-phase
tInhibit 0.000 - 60.000 s 0.001 5.000 Inhibit reclosing reset time
Follow CB Disabled
Enabled
- - Disabled Advance to next shot if CB has been closed
during dead time
AutoCont Disabled
Enabled
- - Disabled Continue with next reclosing-shot if breaker did
not close
tAutoContWait 0.000 - 60.000 s 0.001 2.000 Wait time after close command before
proceeding to next shot
UnsucClByCBChk NoCBCheck
CB check
- - NoCBCheck Unsuccessful closing signal obtained by
checking CB position
BlockByUnsucCl Disabled
Enabled
- - Disabled Block AR at unsuccessful reclosing
ZoneSeqCoord Disabled
Enabled
- - Disabled Coordination of down stream devices to local
protection unit’s AR
10.2.6 Operation principle
10.2.6.1 Initiate auto-reclosing and conditions for initiation of a reclosing cycle
The usual way in which to initiate a reclosing cycle, or sequence, is to initiate it when a line
protection tripping has occurred, by applying a signal to the RI 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
• 52a: to ensure that the CB was closed when the line fault occurred and initiation was
applied
• No blocking or inhibit signal shall be present.
After the initiate has been accepted, it is latched in and an internal signal “Started” is set.
It can be interrupted by certain events, like an inhibit signal.
To initiate auto-reclosing by CB position Open instead of from protection trip signals, one
has to configure the CB Open position signal to inputs 52a and RI and set a parameter
StartByCBOpen = Enabled and CBAuxContType = NormClosed (normally closed, 52b).
1MRK 511 287-UUS A
Section 10
Control
241
Technical manual