Table 22:
Test points for phase-to-phase fault in compensated and high impedance earthed systems
Test point R
X
Comment
P1
Z1CircleStart
/2
∗
cos(
LineAng
)
Z1CircleStart
/2
∗
sin(
LineAng
)
P2
0.8
∗
Z1CircleStart
/2
∗
cos(
ArgLd
)
0.8
∗
Z1CircleStart
/2
∗
sin(
ArgLd
)
If 2I0 <
I0MinOp
P3
RLd
0
If 2I0 <
I0MinOp
P4
- Z1CircleStart
/2
∗
cos(
LineAng
)
- Z1CircleStart
/2
∗
sin(
LineAng
)
P5
- 0.8
∗
Z1CircleStart
/2
∗
cos(
ArgLd
)
- 0.8
∗
Z1CircleStart
/2
∗
sin(
ArgLd
)
If 2I0 <
I0MinOp
P6
- RLd
0
If 2I0 <
I0MinOp
P7
0.8
∗
Z1CircleStart
/2
∗
cos(
ArgLd
)
- 0.8
∗
Z1CircleStart
/2
∗
sin(
ArgLd
)
P8
- 0.8
∗
Z1CircleStart
/2
∗
cos(
ArgLd
)
- 0.8
∗
Z1CircleStart
/2
∗
sin(
ArgLd
)
1.
Change the magnitude and angle of phase-to-earth voltage in phase L1 to achieve impedances
at test points P1, P2, …, P8. Also, inject same magnitude in phase L2 with phase angle shifted
by 180 degree with reference to phase L1.
2.
For each test point, observe that the output signals STELEMST, STNDZL1 and STNDZL2 are
activated.
Quadrilateral characteristic
GUID-E11593FF-DABA-4AC6-9C1F-753102090602 v1
Change setting parameter
CharStartZ<
to Quadrilateral and set
OpLoadEnch
to On. Also, Set
X1Start
,
LineAng
,
ArgLd
, and
RFPEStart
to default values. Ensure
RLd
value is lower than
RFPEStart
.
Phase-to-earth fault
GUID-D8FECD0C-4B31-4A78-8D3C-0A5243516D39 v3
Test points that are to be considered for measurement accuracy of set reactive reach are shown in
Figure
.
1MRK 506 377-UEN Rev. K
Section 10
Testing functionality by secondary injection
Railway application RER670
87
Commissioning manual
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Содержание Relion 670 series
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