ABB Relion 670 series - Distance Measuring Zones, Quadrilateral Characteristic ZMQPDIS (21), ZMQAPDIS (21), ZDRDIR (21 D); Functionality; Identification; Impedance Protection

Section 7 Impedance protection
7.1 Distance measuring zones, quadrilateral characteristic
ZMQPDIS (21), ZMQAPDIS (21), ZDRDIR (21D)
IP14498-1 v4
7.1.1 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
7.1.2 Functionality
M13787-3 v13
The line distance protection is an up to five (depending on product variant) zone full scheme
protection function with three fault loops for phase-to-phase faults and three fault loops for
phase-to-ground faults for each of the independent zones. Individual settings for each zone in
resistive and reactive reach gives flexibility for use as back-up protection for transformer
connected to overhead lines and cables of different types and lengths.
ZMQPDIS (21) together with Phase selection with load encroachment FDPSPDIS (21) has
functionality for load encroachment, which increases the possibility to detect high resistive faults
on heavily loaded lines, as shown in figure
67.
1MRK 502 066-UUS B Section 7
Impedance protection
177
Technical manual