jX
R
X
11
X
12
X
C
Z
S
X
F
W
X
R
V
R
FW
R
RV
Z
S
en06000584.vsd
IEC06000584 V1 EN
Figure 108: Measured impedance at voltage inversion
Forward direction:
Where
X
LLoc
equals line reactance up to the series capacitor(in the picture
approximate 33% of XLine)
X1
is set to (XLindex-XC) · p/100.
p is defined according to figure 106
1,2 is safety factor for fast operation of Zone 1
Compensated line with the series
capacitor not into the reach of zone 1.
The setting is thus:
X1
is set to (XLine-XC) · p/100.
1MRK504116-UUS C Section 3
IED application
241
Application manual
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