Appendix B -Settings and Signals
MENU TEXT COL ROW DEFAULT SETTING AVAILABLE OPTIONS
DESCRIPTION
Zone 1 Gnd Reach 31 81 80
From 10 to 1000 in steps of 1
[Courier Number (percentage)]
Setting entry as percentage of the line impedance that sets Zone 1 reach in ohms.
Zone 2 Gnd Stat. 31 90 Enabled
Enabled
Enabled Ch Fail
To enable (activate) or disable (turn off) or enable (only in the case that differential protection communication channel is lost) Zone 2 for
ground faults.
This setting is invisible if ‘Ground Char.’ is disabled.
Zone 2 Gnd Reach 31 91 150
From 10 to 1000 in steps of 1
[Courier Number (percentage)]
Setting entry as percentage of the line impedance that sets Zone 2 reach in ohms.
Zone 3 Gnd Stat. 31 A0 Enabled
Enabled
Enabled Ch Fail
To enable (activate) or disable (turn off) or enable (only in the case that differential protection communication channel is lost) Zone 3 for
ground faults.
This setting is invisible if ‘Ground Char.’ is disabled.
Zone 3 Gnd Reach 31 A1 250
From 10 to 1000 in steps of 1
[Courier Number (percentage)]
Setting entry as percentage of the line impedance that sets Zone 3 forward reach in ohms.
Zone3 Gnd Offset 31 A2 Enabled
Enabled
To enable (activate) or disable (turn off) or enable (only in the case that differential protection communication channel is lost) Zone 3 offset
reach for ground faults.
By default, Z3 Mho ground characteristic is offset (partly reverse directional), thus not memory/cross polarized. ‘If Z3 Gnd Offset’ is disabled,
Z3 Mho characteristic becomes memory/cross polarized like all other zones.
Z3Gnd Rev Reach 31 A3 10
From 10 to 1000 in steps of 1
[Courier Number (percentage)]
Setting entry as percentage of the line impedance that sets Zone 3 reverse reach in ohms.
Zone P Gnd Stat. 31 B0 Disabled
Enabled
Enabled Ch Fail
To enable (activate) or disable (turn off) or enable (only in the case that differential protection communication channel is lost) Zone P for
ground faults.
This setting is invisible if ‘Ground Char.’ is disabled.
Zone P Gnd Dir. 31 B1 Forward
Reverse
To directionalize ZP forward or reverse.
Zone P Gnd Reach 31 B2 200
From 10 to 1000 in steps of 1
[Courier Number (percentage)]
Setting entry as percentage of the line impedance that sets Zone P forward or reverse reach in ohms.
Zone 4 Gnd Stat. 31 C0 Enabled
Enabled
Enabled Ch Fail
To enable (activate) or disable (turn off) or enable (only in the case that differential protection communication channel is lost) Zone 4 for
ground faults.
This setting is invisible if ‘Ground Char.’ is disabled.
Zone 4 Gnd Reach 31 C1 150
From 10 to 1000 in steps of 1
[Courier Number (percentage)]
Setting entry as percentage of the line impedance that sets reverse Zone 4 reach in ohms.
Digital Filter 31 D0 Standard
Special Applics.
Setting to enable (activate) ‘Standard’ or ‘Special Application’ filters. ‘Standard’ filters are the default setting and should be applied in the
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