Siemens SIPROTEC Manual page 341

Line differential protection with distance protection
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For the 3rd cycle:
3472 3.AR: START
3473 3.AR: T-ACTION
3475 3.AR Tdead 1Flt
3476 3.AR Tdead 2Flt
3477 3.AR Tdead 3Flt
3478 3.AR Tdead1Trip
3479 3.AR Tdead3Trip
3480 3.AR: Tdead EV.
3481 3.AR: CB? CLOSE
3482 3.AR SynRequest
For the 4th cycle:
3483 4.AR: START
3484 4.AR: T-ACTION
3486 4.AR Tdead 1Flt
3487 4.AR Tdead 2Flt
3488 4.AR Tdead 3Flt
3489 4.AR Tdead1Trip
3490 4.AR Tdead3Trip
3491 4.AR: Tdead EV.
3492 4.AR: CB? CLOSE
3493 4.AR SynRequest
5th to 8th Reclose Cycle
If more than four cycles were set during configuration of the functional scope, the dead times preceding the fifth
(5th) through the ninth (9th) reclosing attempts are equal to the open circuit breaker time which precedes the
fourth (4th) reclosing attempt.
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
Start in 3rd cycle generally allowed
Action time for the 3rd cycle
Dead time after 1-phase pickup
Dead time after 2-phase pickup
Dead time after 3-phase pickup
Dead time after 1-pole tripping
Dead time after 3-pole tripping
Dead time after evolving fault
CB ready interrogation before reclosing
Sync. check after 3-pole tripping
Start in 4th cycle generally allowed
Action time for the 4th cycle
Dead time after 1-phase pickup
Dead time after 2-phase pickup
Dead time after 3-phase pickup
Dead time after 1-pole tripping
Dead time after 3-pole tripping
Dead time after evolving fault
CB ready interrogation before reclosing
Sync. check after 3-pole tripping
2.17 Automatic Reclosure Function (optional)
Functions
341

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