Hitachi RER670 Commissioning Manual page 84

Section 10
Testing functionality by secondary injection
Test point
P8
P9
P10
P11
P12
P13
P14
P15
P16
1. Change the magnitude and angle of phase-to-earth voltage in phase L1 to achieve impedances
at test points P1, P2, ..., P16.
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 observe that the output signals STELEMST and STNDZL2 are activated.
Quadrilateral characteristic
Change setting parameter CharStartZ< to Quadrilateral and set OpLoadEnch to On. Also, Set
X1Start, REOverRLStart, XEOverXLStart, LineAng, ArgLd, RFPEStart and RFPPStart to default
values. Set RLd such that it is lower than RFPEStart/RFPPStart.
Phase-to-phase fault
Test points that are to be considered for measurement accuracy of set reactive reach are shown in
Figure 16
78
R
-((X1Start ∗
(1+XEOverXLStart))/
tan(LineAng))
-RFPEStart
-0.8 ∗ RFPEStart
-RLd
-RFPEStart
0.8 ∗ RFPEStart
RFPEStart
-0.8 ∗ RFPEStart
-RFPEStart
For phase-to-earth loop of quadrilateral characteristic in solidly earthed system is
used for starting element, the fault resistive reach can be expanded by considering
REOverRLStart into their fault resistance settings and the resultant resistive reach
becomes RFPEStart * (1 + REOverRLStart).
and Table 18.
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X
-X1Start ∗
(1+XEOverXLStart)
-0.8 ∗ X1Start ∗
(1+XEOverXLStart)
-0.8 ∗ RFPEStart ∗
tan(ArgLd)
0
0
-0.8 ∗ RFPEStart ∗
tan(ArgLd)
-0.8 ∗ X1Start ∗
(1+XEOverXLStart)
0.8 ∗ RFPEStart ∗
tan(ArgLd)
0.8 ∗ X1Start ∗
(1+XEOverXLStart)
Railway application RER670
1MRK 506 377-UEN Rev. L
Comment
If 2I0 < I0MinOp
If 2I0 < I0MinOp
If OpLoadEnch = Off or 2I0
> I0MinOp
If 2I0 < I0MinOp
If 2I0 < I0MinOp
GUID-CFCC6746-559E-4521-AC30-66465A8E8D03 v1
GUID-63CD9D94-999D-45F6-AF11-F90836F6B1E1 v2
Commissioning manual