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1MRK 506 331-UUS A
Commissioning Manual
X
Z
1
4
80%
7
50%
a
d
2
c
6
RLdFw
IEC09000724 V1 EN
Figure 9:
Distance protection characteristic with test points for phase-to-phase
measurements
Table 2:
Test points for phase-to-phase loops A-B (Ohm/phase)
Test point
Reach
Set value
1
X
Z · Sin (LineAng)
R
0
2
X
0
F
RLdFw
R
0,5 * RFPP
3
X
0.8 · Z · Sin (LineAng)
R
0.8 · Z · Cos (LineAng) + RFPP/2
4
X
0.8 · Z · Sin (LineAng)
R
-0.8 · Z · Sin (LineAng) ·
tan (ArgNegRes-90)
5
X
0.5 · RFPP · tan (ArgLd)
R
0.5 · RFPP
6
X
-0.5 RLdFw · tan (ArgDir)
R
0.5 · RLdFw
7
X
0.5 · Z · Sin (LineAng)
R
0
Table
2
is used in conjunction with figure 9.
0.5 · RFPP
3
5
b
R W/phase
IEC09000724_1_en.vsd
Section 6
Testing functionality
Comments
When RLdFw < 0,5 * RFPP
When RLdFw > 0,5 * RFPP
Can be limited by 0,5 * RFPP setting
Only when RLdFw < 0,5 * RFPP
Time measurement
47
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