ABB RELION RET670 - Compensated Lines ZMCPDIS (21), ZMCAPDIS (21), ZDSRDIR 21 D)

Section 8 Impedance protection
8.1 Distance measuring zone, quadrilateral characteristic
for series compensated lines ZMCPDIS
(21),
ZMCAPDIS (21), ZDSRDIR (21D)
SEMOD168167-1 v3
8.1.1 Identification
SEMOD168165-2 v2
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-US
21
Distance measuring zone, quadrilateral
characteristic for series compensated
lines (zone 2-5)
ZMCAPDIS
S00346 V1 EN-US
21
Directional impedance quadrilateral,
including series compensation
ZDSRDIR
Z<->
IEC09000167 V1 EN-US
21D
8.1.2 Application
SEMOD168236-1 v1
8.1.2.1 Introduction
SEMOD168232-4 v2
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 dif
ferent 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 504 163-UUS A Section 8
Impedance protection
Transformer protection RET670 2.2 ANSI 189
Application manual