Section 12
Testing functionality by secondary injection
X +
(
1
IEC09000734 V4 EN-US
Figure 41: Operating characteristic for phase selection function, forward direction
IEC09000735 V3 EN-US
Figure 42: Operating characteristic for phase selection function, forward direction
Table 25:
Test point
1
2
Table continues on next page
116
1
4
85%
XN
)
ArgNegRes
50% of RLdFw
single-phase faults
X
1
4
85%
X1
ArgNegRes
50% RLdFw
0.5·RFFwPP
phase-to-phase faults
Test points for phase-to-earth loop L3-E (Ohm/loop)
Value
X
[X1+XN]
R
0
X
0
R
RLdFw
W
(
/
loop
)
X
5
60°
2
7
6
RFFwPE
W
(
/
phase
)
5
60°
2
7
6
ArgDir
Comments
XN=(X
3
W
(
/
loop
)
R
IEC09000734-4-en.vsd
3
ArgLd
W
(
/
phase
)
R
IEC09000735-3-en.vsd
-X
)/3
0
1
Commissioning manual
1MRK 502 067-UEN B