ABB REG670 Commissioning Manual page 144

Generator protection, relion 670 series
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Section 13
Testing functionality by secondary injection
138
Test point
Reach
Set value
11
X
0.8 x X1
R
–0.37 x X1
12
X
0.5 x X1
R
0.5 x R1
13
X
0
R
0.5 x RFPPZx
Table
19
is used in conjunction with figure 42.
11
X1Zx+XNZx
10
40% of RLdFw
80% of RLdFw
alt. 80% of
RFPEZx (Load
encroachment)
IEC05000369 V4 EN-US
Figure 43:
Distance protection characteristic with test points for phase-to-
earth measurements
Table
20
is used in conjunction with figure 43.
Table 20:
Test points for phase-to-earth L3-E (Ohm/Loop)
Test point
Reach
Value
1
X
(2 x X1
R
0
2
X
(2 x X1
R
2 x R1
3
X
0.8 x (2 x X1
R
0.8 x (2 x R1
+RFPEZx
Table continues on next page
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
set
set
set
set
X
2
1
80%
3
50%
4
12
5
120°
a
6
7
13
9
20°
8
RFPEZx
IEC05000369-4-en.vsdx
+X0
)/3
set
set
+ X0
)/3
set
set
+ R0
)/3
set
set
+ X0
)/3
set
set
+ R0
)/3
set
set
set
1MRK 502 073-UEN A
Comments
Exact –0.5 x R1
x
set
tan(ArgNegRes=30°)
R (Ohm/loop)
Comments
Commissioning manual

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