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.
Circular characteristic
GUID-DD2271AE-CEE6-4EBC-98F1-08FB7EB122C3 v1
Set
Operation
to On always to check for performance of distance protection during testing.
Select type of earthing system by setting parameter
SystemEarthing
and set to either Compensated
or High impedance. Also, Select
CharStartZ<
to Circular and set
OpLoadEnch
to On. Set
Z1CircleStart
,
LineAng
and
ArgLd
to default values. Also, set
RLd
such that its value is lower than
Z1CircleStart
, that is, encroached into operating region.
Phase-to-phase fault
GUID-EA176A86-C14B-480D-955A-213D60AC676B v1
Test points that are to be considered for measurement accuracy of set impedance reach are shown
in
IEC15000433-3-en.vsd
RLd
jX
P1
P2
P3
P4
P5
P6
P7
P8
ArgLd
( )
)
( )
LineAng
R ( )
)
( )
R ( )
Z1CircleStart
IEC15000433 V3 EN-US
Figure 20:
Proposed test points for phase-to-phase fault in compensated and high impedance
earthed systems
Section 10
1MRK 506 377-UEN Rev. K
Testing functionality by secondary injection
86
Railway application RER670
Commissioning manual
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Содержание Relion 670 series
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