ABB REL670 2.2 IEC - Page 213

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 105: 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
( )
60tan °
PHS
X1
5 0.5 · RFFwPP
PHS
6 0.5 · RFPP
Zm
7 X1
PHS
8 X1
Zm
1MRK 506 369-UEN B Section 8
Impedance protection
Line distance protection REL670 2.2 IEC 207
Application manual