Testing the measuring element
GUID-E175A70C-F17A-45B3-8FBF-774A9AB96DCD v2
1.
Set
OpZx
to On,
DirModeZx
to Forward,
LCModeZx
to Off and
PhSelModeZx
to Phsel logic.
Assume that the output LDCND is available before performing testing of measuring zone for
accuracy. Where x = 1, 2, …, 6.
2.
Set
ZoneCharSym
to NonSymmetry.
3.
Set
ModePhPref
to Equal priority.
4.
Set
ArgNegRes
and
ArgDir
to their default values.
5.
Set
X1FWZx
,
LineAng
,
ArgLd
,
REOverRLZx
,
XEOverXLZx
,
RFPEFwZx
,
RFPERvZx
,
RFPPFwZx
and
RFPPRvZx
accordingly. Also, ensure that the
RLd
value is lower than set
RFPEFWZx/RFPPFwZx
values.
6.
Reach settings of starting element must be larger than zone reach settings to have proper
selectivity.
Phase-to-earth fault—measuring element
GUID-D46670BC-2B55-48CC-BC0B-CEF9CB35F2C8 v3
Test points that are to be considered for measurement accuracy of set reactance reach are shown in
Figure
.
Where:
X1Fw =
X1FwZx
∗
(1 +
XEOverXLZx
)
R1Fw = (
X1FwZx
/ tan (
LineAng
))
∗
(1 +
REOverRLZx
)
IEC15000435-2-en.vsdx
R(Ohm/loop)
jX(Ohm/loop)
RFPEFwZx
R 1 Fw
RFPERvZx
X1Fw
RFPEFwZx
RFPERvZx
RLd
80%
P1
P2
P3
P4
P5
P6
P7
P8
P9
ArgLd
ArgDir
ArgNegRes
IEC15000435 V2 EN-US
Figure 17:
Proposed test points for phase-to-earth loop of measuring element
1MRK 506 377-UEN Rev. K
Section 10
Testing functionality by secondary injection
Railway application RER670
81
Commissioning manual
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Содержание Relion 670 series
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