ABB REG670 2.0 IEC - Page 117

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
=
A
r
g
L
D
IEC05000368 V3 EN
Figure 31: Distance protection characteristic with test points for phase-to-phase
measurements
Table 12: 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 (ArgLd) ArgLd = angle for the maximal load
transfer
R 0.85 x RFPP
6 X RLdFw x tan (ArgLd)
R RLdFw
7 X 0
R RLdFw
8 X –0.2143 x RFPP/2 Exact: 0.8 x RFPP/2 (ArgDir=20°)
R 0.8 x RFPP/2
9 X –0.4 x RLdFw x tan(ArgDir=20°)
R 0.4 x RLdFw
10 X 0.5 x X1
set
Exact –0.5 x R1
set
x
tan(ArgNegRes=30°)
R –0.23 x X1
set
Table continues on next page
1MRK502053-UEN B Section 12
Testing functionality by secondary injection
Generator protection REG670 2.0 IEC 111
Commissioning manual