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Section 10
Testing functionality by secondary injection
IEC17000094 V1 EN-US
Figure 25:
Where:
XFw = XFwZx
RFw = XFwZx / tan(CharAng)
Table 27:
Test point
P1
P2
P3
P4
P5
P6
P7
P8
P9
4.
Change the magnitude and angle of voltage to achieve impedances at test points P1, P2,...,.P9.
96
RFRvZx
P8
XFw
P9
ArgNegRes
RFRvZx
Proposed test points to measure the boundary of a measuring zone
Test points to measure the boundary of a measuring zone in primary ohms
R
0
RFw
(0.8 ∗ RFw) + RFFwZx
0.8 ∗ RFFwZx
RLd
RFFwZx
0.5 ∗ RLd
-0.5 ∗ RFRvZx
-0.8 ∗ XFw ∗
tan(ArgNegRes - 90)
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ς
jX
( )
RFw
P1
P2
80%
P4
ArgLd
P5
ArgDir
P7
RLd
RFFwZx
X
XFw
XFw
0.8 ∗ XFw
0.8 ∗ RFFwZx ∗
tan(ArgLd)
0
0
-0.5 ∗ RLd ∗
tan(ArgDir)
XFw
0.8 ∗ XFw
1MRK 506 377-UEN Rev. L
RFFwZx
P3
P6
ς
( )
R
IEC17000094-1-en.vsd
Comment
If LEModeZx = Off
Railway application RER670
Commissioning manual
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