ABB Relion 670 Series REL670, Commissioning Manual

Page: 97 / 270

The solid lines designate the diagram applicable when the load current
compensation is active. The solid line and all test points except 13 are
valid for this case.
When the load current compensation is inactive, the dotted lines and
test point 13 are valid. Test points 5, 6, and 7 are not valid for this
measurement.
X1
X
R (Ohm/phase)
50%
80%
1
2
3
4
5
6
7
8
9
10
11
80% of RLdFw
40% of RLdFw
0.5 x RFPP
12
13
120°
20°
a
c
IEC05000368-3-en
b =
Ar
gLD
IEC05000368 V3 EN
Figure 14: Distance protection characteristic with test points for phase-to-phase
measurements
Table 17: Test points for phase-to-phase loops L1-L2 (Ohm/Loop)
Test point Reach Set value Comments
1 X X1
set
R 0
2 X X1
set
R R1
set
3 X 0.8 x X1
set
R 0.8 x R1
set
+ RFPP/2
4 X 0.5 x X1
set
R 0.5 x R1
set
+ RFPP/2
5 X 0.85 x RFPP x tan (ArgRLd) ArgLd = angle for the maximal load
transfer
R 0.85 x RFPP
6 X RLdFw x tan (ArgLd)
R RLdFw
Table continues on next page
1MRK 506 355-UEN A
Section 10
Testing functionality by secondary injection
Line distance protection REL670 2.1 IEC 91
Commissioning manual