ABB REL670 - Page 97

89
Distance protection Chapter 11
Verifying settings by secondary
injection
Figure 29: Phase selection characteristic for phase to phase faults.
X1
R
X
(Ω /phase)
20%
85%
12
3
5
6
8
9
10
0.8•RLdFw
0.2• RLdFw
11
(Ω /phase)
ArgNegRes
60°
0.5•RFFwPP
ArgDir
12
4
7
ArgLd
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