Distance Relay Setting Examples
GARD 8000 Distance Relay
RFL Electronics Inc.
8.1.7
DISTANCE ELEMENTS – ZONE 1 TO ZONE 4 SETTINGS
Description Range
Units
Step
Actual
Zone 1 Enable
Yes
Enable operation of Zone 1 distance
No – Yes
-
1
Zone 1 direction
Reverse
Forward
Forward
- 1
Zone 1 measuring direction, forward or reverse.
Zone 1 reach
Zone 1 reactive reach in secondary ohms, at set characteristic line
angle.
0.01 - 100
Ohm
0.01
3.30
1-Ph Resistive Limit Zone 1
Resistive reach in secondary ohms for Zone 1 phase-ground
quadrilateral characteristic. Note that the set resistance is the direct
loop resistance, without zero sequence compensation factor
applied. For phase A, the resistance at the R-axis is R
set
= V
A
/I
A
.
0.01 – 100
-
0.01
4
2-Ph Resistive Limit Zone 1
Resistive reach in secondary ohms for Zone 1 phase-phase
quadrilateral characteristic. Note that the set resistance is the
phase-phase resistance. For phase A to B, the resistance at the R-
axis is R
set
= V
AB
/I
AB
.
0.01 - 100
-
0.01
4
Zone 1 ground timer
Zone 1 ground elements time delay
0 - 300
s
0.01
0
Zone 1 phase timer
Zone 1 phase elements time delay
0 - 300
s
0.01
0
Zone 1 quad tilt time delay
Time delay for the load compensation of the reactive
quadrilateral line. After this time, the load compensation is turned
off and the line reverts to being parallel with the R-axis.
Recommended time delay is 0.08 s (80 ms).
0 - 0.5
s
0.01
0
Zone 2 Enable
Enable operation of Zone 2 distance
No – Yes
-
1
Yes
Zone 2 direction
Zone 2 measuring direction, forward or reverse.
Reverse
Forward
- 1
Forward
Zone 2 reach
Zone 2 reactive reach in secondary ohms, at set characteristic line
angle.
0.01 - 100
Ohm
0.01
4.96
1-Ph Resistive Limit Zone 2
Resistive reach in secondary ohms for Zone 2 phase-ground
quadrilateral characteristic. Note that the set resistance is the direct
loop resistance, without zero sequence compensation factor
applied. For phase A, the resistance at the R-axis is R
set
= V
A
/I
A
.
0.01 - 100
-
0.01
4
2-Ph Resistive Limit Zone 2
Resistive reach in secondary ohms for Zone 2 phase-phase
quadrilateral characteristic. Note that the set resistance is the
phase-phase resistance. For phase A to B, the resistance at the R-
axis is R
set
= V
AB
/I
AB
.
0.01 - 100
-
0.01
4
Zone 2 ground timer
Zone 2 ground elements time delay
0 - 300
s
0.01
0.3
Zone 2 phase timer
Zone 2 phase elements time delay
0 - 300
s
0.01
0.3
August 1, 2009
8-9
973.334.3100
