ABB Relion 670 series - Page 114

Test point Reach Set value Comments
5 X 0.85 x RFPP x tan (ArgRLd) ArgLd = angle for the maximal load transfer
R 0.85 x RFPP
6 X RLdFw x tan (ArgLd)
R RLdFw
7 X 0
R RLdFw
8 X –0.2143 x RFPP/2 Exact: 0.8 x RFPP/2 (ArgDir=20°)
R 0.8 x RFPP/2
9 X –0.4 x RLdFw x tan(ArgDir=20°)
R 0.4 x RLdFw
10 X 0.5 x X1
set
Exact –0.5 x R1
set
x tan(ArgNegRes=30°)
R –0.23 x X1
set
11 X 0.8 x X1
set
Exact –0.5 x R1
set
x tan(ArgNegRes=30°)
R –0.37 x X1
set
12 X 0.5 x X1
set
R 0.5 x R1
set
13 X 0 Only used when RLdFw > 0.5 x RFPP
R 0.5 x RFPP
Table 20 is used in conjunction with figure 25.
(2 x X1set+X0set)/3
R
X
(
Ω
/loop)
50%
80%
1
2
3
4
5
6
7
8
9
10
11
50% of RFPEZx
25% of RFPEZx
RFPG
12
ANSI05000369-3-en.vsdx
13
ArgLd
alt. 80% of
RFPG (Load
encroachment)
ArgDir
ANSI05000369 V3 EN-US
Figure 26: Distance protection characteristic with test points for phase-to-ground measurements
Table 21 is used in conjunction with figure 26.
Section 11 1MRK 504 165-UUS Rev. J
Testing functionality by secondary injection
108 Transformer protection RET670
Commissioning manual
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