Hitachi RER670 Commissioning Manual page 89

1MRK 506 377-UEN Rev. L
IEC15000436 V2 EN-US
Figure 18:
Table 20:
Test point
P1
P2
P3
P4
P5
P6
P7
P8
P9
1. Inject the magnitude and angle of phase-to-phase voltage to achieve impedances at test points
P1, P2, ..., P9.
2. Test points P7 and P9 are intended to test the directional lines of impedance protection and
used to find directional accuracy for phase-to-phase faults.
3. For each test point, observe that the start output signals START, STZx, STNDZx, STL1, STL2
and STPP are activated.
4. Trip signals TRIP, TRZx, TRL1 and TRL2 will appear after set delay time of tPPZx if
OpModetPPZx is set to On and TimerSelZx is set to Timers separated.
Railway application RER670
Commissioning manual
jX(Ohm/phase)
RFPPRvZx
P8
80%
X1Fw
P9
ArgNegRes
RFPPRvZx
Proposed test points for phase-to-phase loop of measuring element
Test points for phase-to-phase loop measuring element
R
0
R1Fw
(0.8 ∗ R1Fw) + RFPPFwZx
0.8 ∗ RFPPFwZx
RLd
RFPPFwZx
0.5 ∗ RLd
-0.5 ∗ RFPPRvZx
-0.8 ∗ X1Fw ∗ tan
(ArgNegRes)
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R1 Fw RFPPFwZx
P1
P2
P4
ArgLd
P5 P6
ArgDir
P7
RLd
RFPPFwZx
IEC15000436-2-en.vsdx
X
X1Fw
X1Fw
0.8 ∗ X1Fw
0.8 ∗ RFPPFwZx ∗ tan
(ArgLd)
0
0
-0.5 ∗ RLd ∗ tan (ArgDir)
X1Fw
0.8 ∗ X1Fw
Testing functionality by secondary injection
P3
R(Ohm/phase)
Comment
OpLoadEnch = Off
Section 10
83