Function Revision History; Verifying The Settings - ABB Relion 650 Series Commissioning Manual

Section 9
Testing functionality by secondary injection
9.4.1.1

Function revision history

Document
revision
A
B
C
D
E
F
9.4.1.2

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.
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-earth fault
The shape of the operating characteristic depends on the values of the setting parameters.
64
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 -
2.2.1 -
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. Added information about
grouping of complex values and Dynamic Amplitude deadband monitoring.
2.2.5 ORCND input added with corresponding logic that supplements internal phase selection.
The figures illustrating the characteristic for the distance protection function can be
used when the load encroachment affects the zone characteristic and when it is not.
The solid lines designate the diagram applicable when the load encroachment is
overlapping with the zone. All the test points except 13 are valid for this case. When
the load encroachment does not overlap with the zone, the dotted lines and test
point 13 are valid. Test points 5, 6, and 7 are not valid for this measurement
however.
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Commissioning manual