ABB Relion 670 series, Technical Reference Manual

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6.2 Distance measuring zone, quadrilateral characteristic
for series compensated lines ZMCPDIS (21),
ZMCAPDIS (21), ZDSRDIR (21D)
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
6.2.1 Introduction
The line distance protection is a, up to five zone full scheme protection with three fault
loops for phase-to-phase faults and three fault loops for phase-to-ground fault for each
of the independent zones. Individual settings for each zone resistive and reactive reach
give flexibility for use on overhead lines and cables of different types and lengths.
Quadrilateral characteristic is available.
ZMCPDIS (21) function has functionality for load encroachment which increases the
possibility to detect high resistive faults on heavily loaded lines.
1MRK505222-UUS C
Section 6
Impedance protection
195
Technical reference manual