Completing The Test; High Speed Distance Protection Zones, Quadrilateral And Mho Characteristic Zmfpdis; Function Revision History; Verifying The Settings - ABB Relion 670 Series Commissioning Manual

Line differential protection
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1MRK 505 378-UEN Rev. H
Main menu/Test/Function status/Impedance Protection/PhaseSelection(PDIS, 21)/
FRPSPDIS:x .
3.
Repeat steps
figure
4.
Repeat steps
according to figure
11.4.6.2

Completing the test

Continue to test another function or end the test by changing the
Restore connections and settings to the original values, if changed for testing purposes.
11.4.7
High speed distance protection zones, quadrilateral and mho
characteristic ZMFPDIS
Prepare the IED for verification of settings outlined in section
"Preparing for test"
11.4.7.1

Function revision history

Document
revision
A
B
C
D
E
F
G
11.4.7.2

Verifying the settings

Measure operating characteristics during constant current conditions. Keep the measured
current as close as possible to its rated value or lower. But make sure it is higher than the set
minimum operating current.
Line differential protection RED670
Commissioning manual
1
to
2
to find the operate values for the remaining test points according to
31
and table 28.
When the load encroachment characteristic is deliberately set very high in
order not to have an influence, then the test points 2 and 5 can be
replaced by test point 7.
1
to
3
to find the operate value for the phase-to-phase fault in L1 — L2
32
and table 29.
in this chapter.
This under-impedance-based criterion is defined by the two setting
XStart and RStart . These two settings are common for both Ph-Ph
parameters
and Ph-Gnd measurement loops. In order to ensure proper operation of the
distance zones the under-impedance based starting element shall be set in
such a way to always cover (i.e. be larger than) all used distance zones for both
Ph-Ph and Ph-Gnd loops.
Product
History
revision
2.2.1
Impedance measurement and supervision added (ZMMXU).
2.2.1
-
2.2.2
-
2.2.3
-
2.2.3
-
2.2.4
-
2.2.4
Zone BU (Backup) is added. Now there are seven zones in total. Zone 2 direction
and directional blinders (
added; a parameter for optional fine tuning of performance.
Added new setting
outside of the
© Copyright 2017 Hitachi Power Grids. All rights reserved
ArgDir , ArgNegRes ) are now settable. Setting tTauDC is
RStart , which limits the resistive reach of the phase selection
ArgLd sector. Changed setting name XLd to XStart .
Testing functionality by secondary injection
TESTMODE setting to Off .
GUID-DF1650F4-EC3E-402B-BE26-EF2EF1034237 v8
"Requirements"
and section
GUID-DD5F2758-15E5-496C-8F8E-93AA34B2ACAC v2
GUID-F01D9FAB-E554-402F-BA8A-F411F692292F v2
Section 11
M13906-301 v5
119

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