Verifying The Settings - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
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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.
The test procedure has to take into consideration that the shaped load encroachment characteristic is
active. It is therefore necessary to check the setting. To verify the settings with the shaped load
encroachment characteristic the test should be carried out according to figures and and tables and . In
cases where the load encroachment characteristic is activated tests according to the adjusted figures
should be carried out.
To verify the settings for the operating points according to the following fault types should be tested:
• One phase-to-phase fault
• One phase-to-ground fault
The shape of the operating characteristic depends on the values of the setting parameters.
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Product History
revision
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.
The figures illustrating the characteristic for the distance protection function can be used
for settings with and without load encroachment. The solid lines designate the diagram
applicable when the load current compensation is active. The solid line and all test points
except 13 are valid for this case.
When the load current compensation is inactive, the dotted lines and test point 13 are
valid. Test points 5, 6, and 7 are not valid for this measurement.
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