ABB REG670 2.0 IEC Commissioning Manual page 123

1MRK502053-UEN B
Generator protection REG670 2.0 IEC
Commissioning manual
Testing functionality by secondary injection
11
X1+XN
10
40% of RLdFw
80% of RLdFw
alt. 80% of
RFPE (Load
encroachment)
IEC05000369 V3 EN
Figure 34: Distance protection characteristic with test points for phase-to-earth
measurements
Table 13 is used in conjunction with figure 32.
Table 15: Test points for phase-to-earth L3-E (Ohm/Loop)
Test point Reach Value
1 X
R
2 X
R
3 X
R
4 X
R
5 X
R
6 X
R
7 X
R
8 X
R
9 X
R
Table continues on next page
X
2
1
80%
3
50%
4
12
5
120°
a
6
7
13
9
20°
8
RFPE
IEC05000369-3-en.vsd
(2 x X1 +X0 )/3
set set
0
(2 x X1 + X0 )/3
set set
2 x R1 + R0 )/3
set set
0.8 x (2 x X1 + X0 )/3
set set
0.8 x (2 x R1 + R0 )/3 +RFPE
set set
0.5 x (2 x X1 + R0 )/3
set set
0.5 x (2 x R1 +R0 )/3 + RFPE
set set
0.85 x RFPE x tan(ArgLdset)
set
0.85 x RFPE
RLdFwset x tan(ArgLdSet)
RLdFw
set
0
RLdFw
set
–02143 x RLdFw
set
0.8 x RLdFw
set
–0.8 x RLdFw x tan(ArgDir=20°)
set
0.8 x RLdFw
set
Section 12
R (Ohm/loop)
Comments
set
set
ArgLd = angle for the maximal load
transfer
Exact: 0.8 x RFPE x tan (ArgDir=20°)
117