ABB RELION REG670 Commissioning Manual page 130

Generator protection
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Section 12
Testing functionality by secondary injection
Test point
12
13
Table
29
X1+XN
40% of RLdFw
80% of RLdFw
IEC05000369 V3 EN-US
Figure 46: Distance protection characteristic with test points for phase-to-earth
Table
30
Table 30: Test points for phase-to-earth L3-E (Ohm/Loop)
Test point
1
2
3
4
5
6
Table continues on next page
124
Reach
Set value
X
0.5 x X1
set
R
0.5 x R1
set
X
0
R
0.5 x RFPP
is used in conjunction with figure 45.
X
2
1
11
10
12
120°
a
9
8
alt. 80% of
RFPE
RFPE (Load
encroachment)
measurements
is used in conjunction with figure 46.
Reach
Value
X
(2 x X1
+X0
set
R
0
X
(2 x X1
+ X0
set
R
2 x R1
+ R0
set
X
0.8 x (2 x X1
R
0.8 x (2 x R1
+RFPE
set
X
0.5 x (2 x X1
R
0.5 x (2 x R1
RFPE
set
X
0.85 x RFPE
R
0.85 x RFPE
X
RLdFwset x tan(ArgLdSet)
R
RLdFw
set
Comments
80%
3
50%
4
5
6
R (Ohm/loop)
7
13
20°
IEC05000369-3-en.vsd
Comments
)/3
set
)/3
set
)/3
set
+ X0
)/3
set
set
+ R0
)/3
set
set
+ R0
)/3
set
set
+R0
)/3 +
set
set
x tan(ArgLdset)
ArgLd = angle for the maximal load transfer
set
1MRK 502 067-UEN B
Commissioning manual

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