Hitachi Relion 670 Series Commissioning Manual page 118

Section 11
Testing functionality by secondary injection
The zones that are not tested have to be blocked and the zone that is tested has to be released.
11.4.7.5 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.
11.4.8 High Speed distance for series compensated line zones,
quadrilateral and mho characteristic ZMFCPDIS (21)
Prepare the IED for verification of settings outlined in Section
11.4.8.1 Function revision history
Document
revision
A
B
C
D
E
F
G
H
J
L
M
11.4.8.2 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.
Ensure that the maximum continuous current to the IED does not exceed four times its rated value, if the
measurement of the operating characteristics runs under constant voltage conditions.
112
Product History
revision
2.2.1 Impedance measurement and supervision added (ZMMXU).
2.2.1 -
2.2.2 -
2.2.3 Transient directional (TD) element added, with associated input and outputs.
In ZMFCPDIS, the phase-selection element based on current change criteria is
complemented with equivalent criteria based on change in voltages.
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.
2.2.5 Parallel line mutual coupling compensation feature based on the parallel line residual current
is added with new settings: EnaPar, INPRatio, R0MZ1, X0MZ1, R0MZ2, and X0MZ2.
Load compensation and direction element are improved for earth faults without zero
sequence current condition.
This update is valid for all the previously released 2.2 products.
2.2.6 -
2.2.6 Features for some alternative earthing types (Petersén coil/Isolated and Neutral resistance),
enabled by connecting to the PPL2PHIZ function.
The load compensation of the measuring zones may now be enabled and disabled by a
setting.
New continuous phase selection based on the voltage symmetrical components replaced the
existing one.
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1MRK506371-UUS Rev. M
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"Preparing the IED to verify
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Line distance protection REL670
Commissioning manual
settings".