ABB Relion 670 series - Page 192

j
R1 RFPP
X1
X1
RFPPR1
RFPP
RFPP
RFPP
RFPP
R
X
(Ohm/phase)
(Ohm/phase)
IEC11000428-1-en.vsd
j
0 1
3
X PE X RVPE
XNRV
-
=
0 1
3
X PE X FWPE
XNFW
-
=
0 1
3
X PG X FWPG
XNFW
-
=
0 1
3
X PG X RVPG
XNRV
-
=
0 1
3
X PE X RVPE
XNRV
-
=
0 1
3
X PE X FWPE
XNFW
-
=
2
2
2
2
2
2
IEC11000428 V1 EN-US
Figure 73: Characteristic for phase-to-phase measuring
The fault loop reach with respect to each fault type may also be presented as in figure 74. Note in
particular the difference in definition regarding the (fault) resistive reach for phase-to-phase
faults and three-phase faults.
Section 7 1MRK 502 066-UUS B
Impedance protection
186
Technical manual