Sef Shots - Siemens Argus 7SR21 Technical Manual

7SR220 Settings Guide
Description
Gn 79 E/F Deadtime 2
Time period between the fault being cleared and the close
pulse being issued
Gn 79 E/F Prot'n Trip 3
Selects whether the third earth fault trip is Instantaneous (Fast)
or Delayed. When set to Delayed all E/F Inst Trips will be
Inhibited for this shot.
Gn 79 E/F Deadtime 3
Time period between the fault being cleared and the close
pulse being issued
Gn 79 E/F Prot'n Trip 4
Selects whether the fourth earth fault trip is Instantaneous
(Fast) or Delayed. When set to Delayed all E/F Inst Trips will
be Inhibited for this shot.
Gn 79 E/F Deadtime 4
Time period between the fault being cleared and the close
pulse being issued
Gn 79 E/F Prot'n Trip 5
Selects whether the fifth earth fault trip is Instantaneous (Fast)
or Delayed. When set to Delayed all E/F Inst Trips will be
Inhibited for this shot.
Gn 79 E/F HS Trips To Lockout
Selects how many High Set trips are allowed before going to
Lockout
Gn 79 E/F Delayed Trips To Lockout
Selects how many Delayed trips are allowed before going to
Lockout
3.11.2.3.

SEF Shots

Description
Gn 79 SEF Prot'n Trip 1
Selects whether the first sensitive earth fault trip is
Instantaneous or Delayed. When set to Delayed all SEF Inst
Trips will be Inhibited for this shot.
Gn 79 SEF Deadtime 1
Time period between the fault being cleared and the close
pulse being issued
Gn 79 SEF Prot'n Trip 2
Selects whether the second sensitive earth fault trip is
Instantaneous or Delayed. When set to Delayed all SEF Inst
Trips will be Inhibited for this shot.
Gn 79 SEF Deadtime 2
Time period between the fault being cleared and the close
pulse being issued
Gn 79 SEF Prot'n Trip 3
Selects whether the third sensitive earth fault trip is
Instantaneous or Delayed. When set to Delayed all SEF Inst
Trips will be Inhibited for this shot.
Gn 79 SEF Deadtime 3
Time period between the fault being cleared and the close
pulse being issued
Gn 79 SEF Prot'n Trip 4
Selects whether the fourth sensitive earth fault trip is
Instantaneous or Delayed. When set to Delayed all SEF Inst
Trips will be Inhibited for this shot.
Gn 79 SEF Deadtime 4
Time period between the fault being cleared and the close
pulse being issued
Unrestricted Page 46 of 107
Range
0, 0.1 ... 14300, 14400
Inst, Delayed
0, 0.1 ... 14300, 14400
Inst, Delayed
0, 0.1 ... 14300, 14400
Inst, Delayed
1, 2, 3, 4, 5
1, 2, 3, 4, 5
Range
Inst, Delayed
0, 0.1 ... 14300, 14400
Inst, Delayed
0, 0.1 ... 14300, 14400
Inst, Delayed
0, 0.1 ... 14300, 14400
Inst, Delayed
0, 0.1 ... 14300, 14400
© 2013 Siemens Protection Devices Limited
Default
5 s
Delayed
5 s
Delayed
5 s
Delayed
5
5
Default
Inst
5 s
Inst
5 s
Delayed
5 s
Delayed
5 s