![background image](http://html1.mh-extra.com/html/abb/relion-670-series/relion-670-series_applications-manual_3052129306.webp)
R
X
60°
60°
1
2
3
5
4
6
6
6
6
6
6
7
7
W
( / phase)
IEC09000257_1_en.vsd
W
( / phase)
5
3
8
4
8
IEC09000257 V1 EN-US
Figure 183: Relation between distance protection (ZMQPDIS) and FDPSPDIS
characteristic for phase-to-phase fault for φline>60° (setting parameters in
italic)
1 FDPSPDIS (phase selection) (red line)
2 ZMQPDIS (Impedance protection zone)
3 0.5 ·
RFRvPP
PHS
4
( )
60
tan
°
PHS
X1
5 0.5 ·
RFFwPP
PHS
6 0.5 ·
RFPP
Zm
7
X1
PHS
8
X1
Zm
Section 7
1MRK 505 343-UEN B
Impedance protection
300
Application manual
Summary of Contents for Relion 670 series
Page 1: ...RELION 670 SERIES Line differential protection RED670 Version 2 1 IEC Application manual...
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