Hitachi Relion 670 Series Commissioning Manual page 113

1MRK506371-UUS Rev. M
Main menu /Test /Function status /Impedance Protection /PhaseSelection(PDIS, 21) /
FRPSPDIS:x .
3. Repeat steps
and table 29.
4. Repeat steps
figure
11.4.6.2 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Disabled.
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 (21)
Prepare the IED for verification of settings outlined in section
test" in this chapter.
11.4.7.1 Function revision history
Document
revision
A
B
C
D
E
F
G
H
Table continues on next page
Line distance protection REL670
Commissioning manual
1 to 2 to find the operate values for the remaining test points according to figure
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 A - C according to
32 and table 30.
This under-impedance-based criterion is defined by the two setting parameters XStart and
RStart. These two settings are common for both Ph-Ph 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 -
2.2.4 Zone BU (Backup) is added. Now there are seven zones in total. Zone 2 direction and
directional blinders (ArgDir, ArgNegRes) are now settable. Setting tTauDC is added; a
parameter for optional fine tuning of performance.
Added new setting RStart, which limits the resistive reach of the phase selection outside of
the ArgLd sector. Changed setting name XLd to XStart.
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Testing functionality by secondary injection
GUID-DF1650F4-EC3E-402B-BE26-EF2EF1034237 v8
"Requirements" and section
GUID-DD5F2758-15E5-496C-8F8E-93AA34B2ACAC v4
Section 11
31
M13906-301 v5
"Preparing for
107