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1MRK 506 377-UEN Rev. L
IEC15000433 V3 EN-US
Figure 19:
Table 21:
Test point
P1
P2
P3
P4
P5
P6
P7
P8
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.
Railway application RER670
Commissioning manual
jX
P8
P6
P5
P4
Proposed test points for phase-to-earth loop of circular characteristic in
compensated/high impedance earthed systems
Test points for phase-to-earth loop of circular characteristic for compensated/high impedance earthed
systems
R
Z1CircleStart ∗
cos(LineAng)
0.8 ∗ Z1CircleStart ∗
cos(ArgLd)
RLd
-Z1CircleStart ∗
cos(LineAng)
-0.8 ∗ Z1CircleStart ∗
cos(ArgLd)
-RLd
Z1CircleStart ∗ cos(ArgLd)
-Z1CircleStart ∗ cos(ArgLd)
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( )
( ) )
P1
Z1CircleStart
LineAng
ArgLd
P3
RLd
X
Z1CircleStart ∗
sin(LineAng)
0.8 ∗ Z1CircleStart ∗
sin(ArgLd)
0
-Z1CircleStart ∗
sin(LineAng)
-0.8 ∗ Z1CircleStart ∗
sin(ArgLd)
0
-Z1CircleStart ∗ sin(ArgLd)
Z1CircleStart ∗ sin(ArgLd)
Testing functionality by secondary injection
P2
R ( )
R ( ) )
( )
P7
IEC15000433-3-en.vsd
Comment
If 2I0 < I0MinOp
If 2I0 < I0MinOp
If 2I0 < I0MinOp
If 2I0 < I0MinOp
Section 10
85
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