Ensure that the maximum continuous current to the IED does not exceed four times of its rated
value, if the measurement of the operating characteristics runs under constant voltage conditions.
To verify the settings, test the operating points given in the following figure by injecting appropriate
voltage and current(s) to the IED through a secondary injection kit.
Always set
Operation
to
On
to check the performance of distance protection during testing.
Ensure that the setting parameter
TESTMODE
is set to
ON
.
Testing the measuring zone
GUID-26F9D4F9-8210-4D84-B511-208754DB9E9C v2
1.
Set
OpZx
to
On
,
DirModeZx
to
Forward
, and
LEModeZx
to
On
.
Where, x indicates the measuring zone under testing.
2.
Set
ArgNegRes
and
ArgDir
settings.
3.
Set
XFWZx
,
XRVZx
,
CharAng
,
ArgLd
,
RFFwZx
and
RFRvZx
settings accordingly. Also, ensure
that
RLd
value is lower than the
RFFwZx
set value.
The test points that are to be considered for measurement accuracy of set reactance reach are
shown in Figure
and Table
R
jX
RFFwZx
RFw
RFRvZx
XFw
RFFwZx
RFRvZx
RLd
80%
P1
P2
P3
P4
P5
P6
P7
P8
P9
ArgLd
ArgDir
ArgNegRes
( )
( )
IEC17000094-1-en.vsd
ς
ς
IEC17000094 V1 EN-US
Figure 25:
Proposed test points to measure the boundary of a measuring zone
Where:
XFw = XFwZx
RFw = XFwZx / tan(
CharAng
)
Section 10
1MRK 506 377-UEN Rev. K
Testing functionality by secondary injection
96
Railway application RER670
Commissioning manual
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Содержание Relion 670 series
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