ABB RET670 - Distance Protection Zone, Quadrilateral Characteristic, Separate Settings ZMRPDIS (21), ZMRAPDIS (21) and ZDRDIR (21 D); Application

Name Values (Range) Unit Step Default Description
V2MinOp 1 - 100 %VB 1 5 Minimum operate negative sequence voltage
for ph sel
INRelPG 10 - 100 %IB 1 20 3I0 limit for release ph-g measuring loops in
% of max phase current
3I0BLK_PP 10 - 100 %IB 1 40 3I0 limit for blocking phase-to-phase
measuring loops in % of max phase current
3.6.9 Distance protection zone, quadrilateral characteristic,
separate settings ZMRPDIS (21), ZMRAPDIS (21) and
ZDRDIR (21D)
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Distance protection zone, quadrilateral
characteristic, separate settings (zone
1)
ZMRPDIS
S00346 V1 EN
21
Distance protection zone, quadrilateral
characteristic, separate settings (zone
2-5)
ZMRAPDIS
S00346 V1 EN
21
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Directional impedance quadrilateral ZDRDIR Z<-> 21D
3.6.9.1 Application
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 although it also can be used on
distribution levels.
Section 3 1MRK504116-UUS C
IED application
316
Application manual