X1
X
R (Ohm/phase)
50%
80%
1
2
3
4
5
6
7
8
9
10
11
80% of RLdFw
40% of RLdFw
0.5 x RFPP
12
13
120°
20°
a
c
IEC05000368-3-en
b =
Ar
gLD
IEC05000368 V3 EN-US
Figure 43: Distance protection characteristic with test points for phase-to-phase
measurements
Table 27: Test points for phase-to-phase loops L1-L2 (Ohm/Loop)
Test point
Reach
Set value
Comments
1
X
X1
set
R
0
2
X
X1
set
R
R1
set
3
X
0.8 x X1
set
R
0.8 x R1
set
+ RFPP/2
4
X
0.5 x X1
set
R
0.5 x R1
set
+ RFPP/2
5
X
0.85 x RFPP x tan (ArgLd)
ArgLd = angle for the maximal load transfer
R
0.85 x RFPP
6
X
RLdFw x tan (ArgLd)
R
RLdFw
7
X
0
R
RLdFw
8
X
–0.2143 x RFPP/2
Exact: 0.8 x RFPP/2 (ArgDir=20°)
R
0.8 x RFPP/2
9
X
–0.4 x RLdFw x tan(ArgDir=20°)
R
0.4 x RLdFw
10
X
0.5 x X1
set
Exact –0.5 x R1
set
x tan(ArgNegRes=30°)
R
–0.23 x X1
set
11
X
0.8 x X1
set
Exact –0.5 x R1
set
x tan(ArgNegRes=30°)
R
–0.37 x X1
set
Table continues on next page
1MRK 502 067-UEN B
Section 12
Testing functionality by secondary injection
119
Commissioning manual
