j
R1PP RFFwPP
X1FwPP
X1RvPP
RFFwPP
RFRvPP
RFFwPP
RFRvPP
RFRvPP
R
X
(Ohm/phase)
(Ohm/phase)
IEC09000632-1-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
j
N
N
j
IEC09000632 V1 EN
Figure 90: Characteristic for the phase-to-phase measuring loops
The fault loop reach with respect to each fault type may also be presented as in
figure 91. Note in particular the difference in definition regarding the (fault) resistive
reach for phase-to-phase faults and three-phase faults.
1MRK505222-UUS C Section 6
Impedance protection
199
Technical reference manual
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