Table of Contents
Advertisement
Section 10
Testing functionality by secondary injection
IEC15000435 V2 EN-US
Figure 23:
Table 25:
Test point
P1
P2
P3
P4
P5
P6
P7
P8
P9
1.
Change the magnitude and angle of phase-to-earth voltage in phase L1 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-earth faults.
3.
For each test point, observe that the start output signals START, STZx, STNDZx, STL1 and
STPE are activated.
4.
Trip signals TRIP, TRZx, TRL1 will appear after set delay time of tPEZx if OpModetPEZx is set
to On and TimerSelZx is set to Timers separated.
5.
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 start output signals START, STZx,
STNDZx, STL2 and STPE are activated.
6.
Trip signals TRIP, TRZx, TRL2 will appear after set delay time of tPEZx if OpModetPEZx is set
to On and TimerSelZx is set to Timers separated.
92
jX(Ohm/loop)
RFPERvZx
P8
80%
P9
X1Fw
ArgNegRes
RFPERvZx
Proposed test points for phase-to-earth loop of measuring element
Test points for phase-to-earth loop measuring element
R
0
R1Fw
(0.8 ∗ R1Fw) + RFPEFwZx
0.8 ∗ RFPEFwZx
RLd
RFPEFwZx
0.5 ∗ RLd
-0.5 ∗ RFPERvZx
-0.8 ∗ X1Fw ∗ tan
(ArgNegRes - 90)
© 2017 - 2022 Hitachi Energy. All rights reserved
R 1 Fw
RFPEFwZx
P1
P2
P4
ArgLd
P5
P6
ArgDir
P7
RLd
RFPEFwZx
IEC15000435-2-en.vsdx
X
X1Fw
X1Fw
0.8 ∗ X1Fw
0.8 ∗ RFPEFwZx ∗ tan
(ArgLd)
0
0
-0.5 ∗ RLd ∗ tan (ArgDir)
X1Fw
0.8 ∗ X1Fw
1MRK 506 377-UEN Rev. L
P3
R(Ohm/loop)
Comment
OpLoadEnch = Off
Railway application RER670
Commissioning manual
Advertisement
Table of Contents
