7SR11 & 7SR12 Applications Guide
Page 38 of 48 ©2017 Siemens Protection Devices Limited
4.1.3 Auto-Reclose Example 3, simple single shot sequence
Requirement: Settings shall provide one phase fault reclose for IDMTL or DTL highset- and one reclose for earth
fault IDMTL or DTL highest.
Proposed settings include:
CONTROL & LOGIC > AUTORECLOSE PROT’N:
79 P/F Inst Trips: none
79 E/F Inst Trips: none
79 P/F Delayed Trips: 51-1, 50-1
79 E/F Delayed Trips: 51N-1, 50N-1
79 P/F HS Trips: none
79 E/F HS Trips: none
CONTROL & LOGIC > AUTORECLOSE CONFIG
79 Num Shots: 1
CONTROL & LOGIC > AUTORECLOSE CONFIG > P/F SHOTS
79 P/F Prot’n Trip 1 : Inst (not important as there are no Inst elements set)
79 P/F Prot’n Trip 2 : Delayed (not important as there are no Inst elements set)
79 P/F HS Trips to Lockout : 5 (not used)
79 P/F Delayed Trips to Lockout : 5 (not used)
CONTROL & LOGIC > AUTORECLOSE CONFIG > E/F SHOTS
79 E/F Prot’n Trip 1 : Delayed (not important as there are no Inst elements set)
79 SEF Prot’n Trip 2 : Delayed (not important as there are no Inst elements set)
79 E/F HS Trips to Lockout : 5 (not used)
79 E/F Delayed Trips to Lockout : 5 (not used)
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