1. Change the magnitude and angle of phase-to-earth voltage in phase L1 to
achieve impedances at test points P1, P2, …, P8. At the same time, inject
voltage magnitude of 0.0 V and current of 0.0 A in phase L2.
2. For each test point, observe that the output signals STELEMST and
STNDZL1 are activated.
3. Repeat the above test by injecting phase-to-earth voltage in phase L2 in
accordance with test points and steps described above and observe that the
output signals STELEMST and STNDZL2 are activated.
Change setting parameter CharStartZ< to Quadrilateral and set OpLoadEnch to
On. Also, Set X1Start, REOverRLStart, XEOverXLStart, LineAng, AngLd, and
RFPEStart to default values. Ensure RLd value is lower than RFPEStart.
Phase-to-earth fault – quadrilateral characteristic
GUID-D8FECD0C-4B31-4A78-8D3C-0A5243516D39 v2
Test points that are to be considered for measurement accuracy of set reactive reach
are shown in Figure
18 and Table 20.
IEC15000434-2-en.vsd
R
jX
RLd
RFPEStart
X1Start
P2
P1
P3
P4
P8
P9
P10
P11
P13
P14
P15
P16
P7
P5
P6
ArgLd
(
)
IEC15000434 V2 EN-US
Figure 18: Proposed test points for phase-to-earth loop of quadrilateral
characteristic in compensated/high impedance earthed systems
1MRK 506 377-UEN C Section 10
Testing functionality by secondary injection
Railway application RER670 2.2 IEC 91
Commissioning manual
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