Section 6 Impedance Protection; Distance Measuring Zones, Quadrilateral Characteristic Zmqpdis (21), Zmqapdis (21), Zdrdir (21D); Identification; Introduction(21) - ABB Relion 670 Series Technical Reference Manual

1MRK505222-UUS C
Section 6
6.1
6.1.1
6.1.2
Technical reference manual
Impedance protection
About this chapter
This chapter describes distance protection and associated functions. It includes
function blocks, logic diagrams and data tables with information about distance
protection, automatic switch onto fault, weak end in-feed and other associated
functions. Quadrilateral characteristics are also covered.
Distance measuring zones, quadrilateral characteristic
ZMQPDIS (21), ZMQAPDIS (21), ZDRDIR (21D)

Identification

Function description
Distance protection zone, quadrilateral
characteristic (zone 1)
Distance protection zone, quadrilateral
characteristic (zone 2-5)
Directional impedance quadrilateral

Introduction(21)

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 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.
Impedance protection
IEC 61850 IEC 60617
identification identification
ZMQPDIS
S00346 V1 EN
ZMQAPDIS
S00346 V1 EN
ZDRDIR
Z<->
IEC09000167 V1 EN
Section 6
ANSI/IEEE C37.2
device number
21
21
21D
173