ABB Relion 670 series - Page 268

j
R1PP RFPP
X1PP
X1PP
RFPPR1PP
RFPP
RFPP
RFPP
RFPP
R
X
(Ohm/phase)
(Ohm/phase)
en07000062.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
IEC07000062 V2 EN-US
Figure 124: Characteristic for phase-to-phase measuring
The fault loop reach with respect to each fault type may also be presented as in figure 125. 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
262
Technical manual