7SR220 Settings Guide
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Description Range Default
Gn 79 Cold Load Action
Selects whether whist Cold Load is active the relay will
perform only Delayed Trips or not.
Off, Delayed Off
3.11.2.1. P/F Shots
Description Range Default
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.
Inst, Delayed Inst
Gn 79 P/F Deadtime 1
Time period between the fault being cleared and the close
pulse being issued
0, 0.1 ... 14300, 14400 5 s
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.
Inst, Delayed Inst
Gn 79 P/F Deadtime 2
Time period between the fault being cleared and the close
pulse being issued
0, 0.1 ... 14300, 14400 5 s
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.
Inst, Delayed Delayed
Gn 79 P/F Deadtime 3
Time period between the fault being cleared and the close
pulse being issued
0, 0.1 ... 14300, 14400 5 s
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.
Inst, Delayed Delayed
Gn 79 P/F Deadtime 4
Time period between the fault being cleared and the close
pulse being issued
0, 0.1 ... 14300, 14400 5 s
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.
Inst, Delayed Delayed
Gn 79 P/F HS Trips To Lockout
Selects how many High Set trips are allowed before going to
Lockout
1, 2, 3, 4, 5 5
Gn 79 P/F Delayed Trips To Lockout
Selects how many Delayed trips are allowed before going to
Lockout
1, 2, 3, 4, 5 5
3.11.2.2. E/F Shots
Description Range Default
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.
Inst, Delayed Inst
Gn 79 E/F Deadtime 1
Time period between the fault being cleared and the close
pulse being issued
0, 0.1 ... 14300, 14400 5 s
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.
Inst, Delayed Inst
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