E/F Shots - Siemens Argus 7SR21 Technical Manual

Description
Gn 79 Cold Load Action
Selects whether whist Cold Load is active the relay will
perform only Delayed Trips or not.
3.11.2.1. P/F Shots
Description
Gn 79 P/F Prot'n Trip 1
Selects whether the first phase fault trip is Instantaneous
(Fast) or Delayed. When set to Delayed all P/F Inst Trips will
be Inhibited for this shot.
Gn 79 P/F Deadtime 1
Time period between the fault being cleared and the close
pulse being issued
Gn 79 P/F Prot'n Trip 2
Selects whether the second phase fault trip is Instantaneous
(Fast) or Delayed. When set to Delayed all P/F Inst Trips will
be Inhibited for this shot.
Gn 79 P/F Deadtime 2
Time period between the fault being cleared and the close
pulse being issued
Gn 79 P/F Prot'n Trip 3
Selects whether the third phase fault trip is Instantaneous
(Fast) or Delayed. When set to Delayed all P/F Inst Trips will
be Inhibited for this shot.
Gn 79 P/F Deadtime 3
Time period between the fault being cleared and the close
pulse being issued
Gn 79 P/F Prot'n Trip 4
Selects whether the fourth phase fault trip is Instantaneous
(Fast) or Delayed. When set to Delayed all P/F Inst Trips will
be Inhibited for this shot.
Gn 79 P/F Deadtime 4
Time period between the fault being cleared and the close
pulse being issued
Gn 79 P/F Prot'n Trip 5
Selects whether the fifth phase fault trip is Instantaneous
(Fast) or Delayed. When set to Delayed all P/F Inst Trips will
be Inhibited for this shot.
Gn 79 P/F HS Trips To Lockout
Selects how many High Set trips are allowed before going to
Lockout
Gn 79 P/F Delayed Trips To Lockout
Selects how many Delayed trips are allowed before going to
Lockout
3.11.2.2.

E/F Shots

Description
Gn 79 E/F Prot'n Trip 1
Selects whether the first 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 1
Time period between the fault being cleared and the close
pulse being issued
Gn 79 E/F Prot'n Trip 2
Selects whether the second earth fault trip is Instantaneous
(Fast) or Delayed. When set to Delayed all E/F Inst Trips will
be Inhibited for this shot.
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Range
Off, Delayed
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
Inst, Delayed
1, 2, 3, 4, 5
1, 2, 3, 4, 5
Range
Inst, Delayed
0, 0.1 ... 14300, 14400
Inst, Delayed
7SR220 Settings Guide
Default
Off
Default
Inst
5 s
Inst
5 s
Delayed
5 s
Delayed
5 s
Delayed
5
5
Default
Inst
5 s
Inst
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