ABB REL670 2.2 IEC - Minimum Operate Currents

8.2.3.3 Minimum operate currents
M13142-334 v5
FDPSPDIShas two current setting parameters which blocks the respective phase-
to-earth loop and phase-to-phase loop if the RMS value of the phase current (ILn)
and phase difference current (ILmILn) is below the settable threshold.
The threshold to activate the phase selector for phase-to-earth (IMinOpPE) is set to
securely detect a single phase-to-earth fault at the furthest reach of the phase
selection. It is recommended to set IMinOpPP to double value of IMinOpPE.
The threshold for opening the measuring loop for phase-to-earth fault
(INReleasePE) is set securely detect single line-to-earth fault at remote end on the
protected line. It is recommended to set INBlockPP to double value of
INReleasePE.
8.3 Distance measuring zones, quadrilateral
characteristic ZMQPDIS, ZMQAPDIS, ZDRDIR
IP14498-1 v4
8.3.1 Identification
M14852-1 v6
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Distance protection zone, quadrilateral
characteristic (zone 1)
ZMQPDIS
S00346 V1 EN-US
21
Distance protection zone, quadrilateral
characteristic (zone 2-5)
ZMQAPDIS
S00346 V1 EN-US
21
Directional impedance quadrilateral ZDRDIR
Z<->
IEC09000167 V1 EN-US
21D
8.3.2 Application
IP14961-1 v2
M17048-3 v7
Sub-transmission networks are being extended and often become more and more
complex, consisting of a high number of multi-circuit and/or multi terminal lines of
very different lengths. These changes in the network will normally impose more
stringent demands on the fault clearing equipment in order to maintain an
unchanged or increased security level of the power system.
The distance protection function in the IED is designed to meet basic requirements
for application on transmission and sub-transmission lines (solid earthed systems)
although it also can be used on distribution levels.
1MRK 506 369-UEN B Section 8
Impedance protection
Line distance protection REL670 2.2 IEC 209
Application manual