ABB REG670 Commissioning Manual page 149

1MRK 502 073-UEN A
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Commissioning manual
Testing functionality by secondary injection
11
X1Zx+XNZx
10
40% of RLdFw
80% of RLdFw
alt. 80% of
RFPEZx (Load
encroachment)
IEC05000369 V4 EN-US
Figure 45: Distance protection characteristic with test points for phase-to-
earth measurements
Table 22 is used in conjunction with figure 45.
Table 22: 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
Table continues on next page
X
2
1
80%
3
50%
4
12
5
120°
a
6
7 13
9
20°
8
RFPEZx
IEC05000369-4-en.vsdx
(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
set set
+RFPEZx
set
0.5 x (2 x X1 + R0 )/3
set set
0.5 x (2 x R1 +R0 )/3 +
set set
RFPEZx
set
0.85 x RFPEZx x tan(ArgLd
set
0.85 x RFPEZx
RLdFw x tan(ArgLd )
set Set
RLdFw
set
0
RLdFw
set
–02143 x RLdFw
set
0.8 x RLdFw
set
Section 13
R (Ohm/loop)
Comments
) ArgLd = angle for the maximal load
set
transfer
Exact: 0.8 x RFPEZx x tan
(ArgDir=20°)
143