High Speed Distance Protection Zones, Quadrilateral And Mho Characteristic Zmfpdis (21); Function Revision History; Verifying The Settings - ABB Relion 670 Series Commissioning Manual

1MRK 504 165-UUS Rev. J
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
J
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.
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-ground fault
The shape of the operating characteristic depends on the values of the setting parameters.
Transformer protection RET670
Commissioning manual
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.
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.
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Testing functionality by secondary injection
GUID-DF1650F4-EC3E-402B-BE26-EF2EF1034237 v8
"Requirements" and section
GUID-DD5F2758-15E5-496C-8F8E-93AA34B2ACAC v3
GUID-F01D9FAB-E554-402F-BA8A-F411F692292F v2
Section 11
"Preparing for
123