ArgDir
R
X
RFFwPE
1
3
)
1
(
XN
X
+
5
2
4
ArgNegRes
85%
ArgLd
50% of
RLdFw
6
IEC09000734-3-en.vsd
( /
)
loop
W
( /
)
loop
W
7
60°
IEC09000734 V3 EN
Figure 22:
Operating characteristic for phase selection function, forward
direction single-phase faults
X1
R
X
85%
1
3
5
2
6
4
50% RLdFw
ArgNegRes
0.5·RFFwPP
ArgLd
IEC09000735-3-en.vsd
ArgDir
60°
)
/
(
phase
W
)
/
(
phase
W
7
IEC09000735 V3 EN
Figure 23:
Operating characteristic for phase selection function, forward
direction phase-to-phase faults
1MRK 506 355-UEN A
Section 10
Testing functionality by secondary injection
Line distance protection REL670 2.1 IEC
105
Commissioning manual
Содержание Relion 670 Series REL670
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