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2.1.12 Metering
The Status of the DAR operations are displayed in Meters under the instruments Menu.
2.1.13 Dead-time and Reclaim Timing
The Deadtime will start if a Trip has occurred and the CB is Open and the Trip and Starter have then reset and
the line has gone dead. Once a trip has occurred if the CB does not open or the Trip does not reset or the starter
does not reset then the DAR will Lockout. This could be due to either a CB Fail condition, which would
independently notify Lockout, or the Trip or Starter relay contact failing to reset. If the line does not go dead this
may signify that the remote end has failed to clear the fault, and the autoreclose will go to Lockout.
A Trip during the deadtime will result in resetting the deadtime and then restarting the deadtime when the trip
resets, provided the Sequence Fail Timer has not expired.
The Reclaim time will start once the Close Pulse has timed out and the CB has closed. Lockout is alarmed if the
CB is open at the end of the reclaim time.
2.1.14 Lockout
The Lockout state can be reached for a number of reasons. Lockout will occur for the following:
•
at the end of the Reclaim time if the CB is in the open position.
•
a protection operates during the final Reclaim time.
•
if a Close Pulse is given and the CB fails to close.
•
The Reclose Lockout status input is active.
•
At the end of the Reclose Block Delay due to a persistent Block signal not cleared.
•
At the end of the Sync Close Delay due to Synchronism not being achieved.
Once the Lockout condition has been reached, it will be maintained until reset. The following will reset lockout:
•
By a Manual Close command, from fascia, comms or a status input.
•
By a Reset Lockout signal, provided there is no signal present that will cause Lockout.
•
At the end of the Minimum Lockout time if Reset Lockout is selected to be reset by a timer, provided there is
no signal present which will cause Lockout.
•
if Lockout was entered by an A/R Out signal during an Autoreclose sequence then an A/R In signal must be
received before Lockout can reset.
•
by the CB Closed, provided there is no signal present which will cause Lockout.
The Lockout condition has a delayed drop-off of 2s.
The Lockout condition will initiate the Lockout indication and alarm contact.
Lockout does not issue a trip signal.
Lockout indicates an abnormal system occurrence, an event that needs to be investigated. When a CB is
normally open the A/R relay does not go to Lockout, but using a combination of Trip and CB In Service to start the
sequence prevents A/R sequences.
Table 2-1
Typical Settings Auto-Reclose
Setting name
A/R In Service
Number Of Shots
Shot Deadtime
CB Close Pulse
Reclaim Time
Elem Trip
Line Check Trip
Elem TTL
Rec Block Delay
Slow Open Delay
Seq Fail Timer
Min LO Timer
Reset LO By Time
©2010 Siemens Protection Devices Ltd.
Range (bold = default)
In, Out
1..4
0.0, 0.1...5.00...120, 121...900
0.2, 0.3...2.0...20
OFF, 1...5...600
Delayed, Instant
Delayed, Instant
OFF, 1...5
0, 1...60...600
50, 60...140...2000
OFF, 1, 2...600
0, 1...2...60
Enabled, Disabled
7SG13 Delta P20064 FM1 Autoreclosing
Units Notes
s
s
s
s
ms
s
s
P20064 Page 6 of 7
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