ABB RET670 Installation And Commissioning Manual page 124

Section 13
Verifying settings by secondary injection
118
11
X1
10
40% of RLdFw
80% of RLdFw
en05000368.vsd
IEC05000368 V1 EN
Figure 52: Distance protection characteristic with test points for phase-to-
phase measurements
Table 20 is used in conjunction with figure 52.
11
X1+XN
10
40% of RLdFw
80% of RLdFw
alt. 80% of
RFPE (Load
encroachment)
IEC05000369 V1 EN
Figure 53: Distance protection characteristic with test points for phase-to-
earth measurements
Table 21 is used in conjunction with figure 53.
X
2
1
80%
3
50%
4
12
5
6
7 13
9
8
0.5 x RFPP
X
2
1
80%
3
50%
4
12
5
6
7 13
9
8
RFPE
en05000369.vsd
1MRK 504 088-UEN C
(Ω/
R
phase)
(Ω/ loop)
R
Installation and commissioning manual