ABB RET670 Commissioning Manual page 108

Section 10
Testing functionality by secondary injection
Test point
10
11
12
13
Table 27
40% of RLdFwd
80% of RLdFwd
encroachment)
ANSI05000369 V2 EN-US
Figure 25: Distance protection characteristic with test points for phase-to-ground
Table 28
Table 28: Test points for phase-to-ground C-G (Ohm/Loop)
Test point
1
2
3
Table continues on next page
102
Reach Set value
X 0.5 x X1
set
R –0.23 x X1
set
X 0.8 x X1
set
R –0.37 x X1
set
X 0.5 x X1
set
R 0.5 x R1
set
X 0
R 0.5 x RFPP
is used in conjunction with figure 24.
2
1
11
10
12
120°
a
9
8
alt. 80% of
RFPG
RFPG (Load
measurements
is used in conjunction with figure 25.
Reach Value
X (2 x X1 +X0
set
R 0
X (2 x X1 + X0
set
R 2 x R1 + R0
set
X 0.8 x (2 x X1
R 0.8 x (2 x R1
+RFPG
set
Comments
Exact –0.5 x R1
Exact –0.5 x R1
80%
3
50%
4
5
6
7
13
20°
ANSI05000369-2-en.vsd
Comments
)/3
set
)/3
set
)/3
set
+ X0 )/3
set set
+ R0 )/3
set set
1MRK 504 154-UUS B
x tan(ArgNegRes=30°)
set
x tan(ArgNegRes=30°)
set
Commissioning manual