ABB RED670 Commissioning Manual page 118

Section 11
Testing functionality by secondary injection
X1set
ANSI05000368 V2 EN-US
Figure 29:
Table 27
(2 x X1set+X0set)/3
25% of RFPEZx
ANSI05000369 V3 EN-US
Figure 30:
Table 28
112
The figures illustrating the characteristic for the distance protection function can be used
for settings with and without load encroachment. The solid lines designate the diagram
applicable when the load current compensation is active. The solid line and all test points
except 13 are valid for this case.
Test points 5, 6, and 7 are not valid for this measurement.
X
2
1
11
10
12
9
8
25% of RFPPZx/2
50% of RFPPZx/2
RFPP/2
Distance protection characteristic with test points for phase-to-phase measurements
is used in conjunction with figure 29.
X
2
1
11
10
12
9
8
50% of RFPEZx
alt. 80% of
RFPG
RFPG (Load
encroachment)
Distance protection characteristic with test points for phase-to-ground measurements
is used in conjunction with figure 30.
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80%
3
50%
4
5
ArgLd
6
(Ω/phase)
R
7 13
ArgDir
ANSI05000368-2-en.vsdx
80%
3
50%
4
5
ArgLd
6
(Ω /loop)
R
7
13
ArgDir
ANSI05000369-3-en.vsdx
1MRK 505 378-UUS Rev. J
Line differential protection RED670
Commissioning manual