ABB Relion 670 Series Commissioning Manual page 93

1MRK 506 377-UEN Rev. K
Table 22: Test points for phase-to-phase fault in compensated and high impedance earthed systems
Test point R
Z1CircleStart/2 ∗ cos(LineAng)
P1
0.8 ∗ Z1CircleStart/2 ∗ cos(ArgLd)
P2
P3 RLd
- Z1CircleStart/2 ∗ cos(LineAng)
P4
- 0.8 ∗ Z1CircleStart/2 ∗ cos(ArgLd)
P5
P6 - RLd
0.8 ∗ Z1CircleStart/2 ∗ cos(ArgLd)
P7
- 0.8 ∗ Z1CircleStart/2 ∗ cos(ArgLd)
P8
1. Change the magnitude and angle of phase-to-earth voltage in phase L1 to achieve impedances
at test points P1, P2, ..., P8. Also, inject same magnitude in phase L2 with phase angle shifted
by 180 degree with reference to phase L1.
2. For each test point, observe that the output signals STELEMST, STNDZL1 and STNDZL2 are
activated.
Quadrilateral characteristic
Change setting parameter CharStartZ< to Quadrilateral and set OpLoadEnch to On. Also, Set
X1Start, LineAng, ArgLd, and RFPEStart to default values. Ensure RLd value is lower than
RFPEStart.
Phase-to-earth fault
Test points that are to be considered for measurement accuracy of set reactive reach are shown in
Figure 21
Railway application RER670
Commissioning manual
X
Z1CircleStart/2 ∗ sin(LineAng)
0.8 ∗ Z1CircleStart/2 ∗ sin(ArgLd)
0
- Z1CircleStart/2 ∗ sin(LineAng)
- 0.8 ∗ Z1CircleStart/2 ∗ sin(ArgLd)
0
- 0.8 ∗ Z1CircleStart/2 ∗ sin(ArgLd)
- 0.8 ∗ Z1CircleStart/2 ∗ sin(ArgLd)
and Table 23.
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Testing functionality by secondary injection
Comment
If 2I0 < I0MinOp
If 2I0 < I0MinOp
If 2I0 < I0MinOp
If 2I0 < I0MinOp
GUID-E11593FF-DABA-4AC6-9C1F-753102090602 v1
GUID-D8FECD0C-4B31-4A78-8D3C-0A5243516D39 v3
Section 10
87