ABB Relion 670 series - Introduction

Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Distance protection zone, quadrilateral
characteristic, separate settings (zone
1)
ZMRPDIS
S00346 V1 EN
21
Distance protection zone, quadrilateral
characteristic, separate settings (zone
2-5)
ZMRAPDIS
S00346 V1 EN
21
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Directional impedance quadrilateral ZDRDIR Z<-> 21D
6.9.1 Introduction
The line distance protection is 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 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.
Mho alternative quadrilateral characteristic is available.
ZMRPDIS (21) together with Phase selection, quadrilateral characteristic with settable
angle FRPSPDIS (21) has functionality for load encroachment, which increases the
possibility to detect high resistive faults on heavily loaded lines, as shown in figure
73.
Section 6 1MRK505222-UUS C
Impedance protection
304
Technical reference manual