ABB Relion 670 series - Section 8 Impedance Protection; Distance Measuring Zone, Quadrilateral Characteristic for Series; Identification; Application

Section 8 Impedance protection
8.1 Distance measuring zone, quadrilateral characteristic
for series compensated lines ZMCPDIS (21),
ZMCAPDIS (21), ZDSRDIR (21D)
8.1.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Distance measuring zone, quadrilateral
characteristic for series compensated
lines (zone 1)
ZMCPDIS
S00346 V1 EN
21
Distance measuring zone, quadrilateral
characteristic for series compensated
lines (zone 2-5)
ZMCAPDIS
S00346 V1 EN
21
Directional impedance quadrilateral,
including series compensation
ZDSRDIR
Z<->
IEC09000167 V1 EN
21D
8.1.2 Application
8.1.2.1 Introduction
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.
1MRK 506 369-UUS - Section 8
Impedance protection
Line distance protection REL670 2.2 ANSI 157
Application manual