ABB Relion 670 Series Commissioning Manual page 133

1MRK 504 165-UEN E
X1Zx
IEC05000368 V4 EN-US
Figure 37: Distance protection characteristic with test points for phase-to-phase
Table 32:
Test point
1
2
3
4
5
6
7
8
9
10
11
Table continues on next page
Transformer protection RET670
Commissioning manual
X
2
1
11
10
12
120°
a
9
8
40% of RLdFw
80% of RLdFw
0.5 x RFPPZx
measurements
Test points for phase-to-phase loops L1-L2 (Ohm/Loop)
Reach Set value
X X1
set
R 0
X X1
set
R R1
set
X 0.8 x X1
set
R 0.8 x R1 + RFPPZx/2
set
X 0.5 x X1
set
R 0.5 x R1 + RFPPZx/2
set
X 0.85 x RFPPZx x tan (ArgLd)
R 0.85 x RFPPZx
X RLdFw x tan (ArgLd)
R RLdFw
X RLdFw x tan (ArgLd)
R 0
X –0.2143 x RFPPZx/2
R 0.8 x RFPPZx/2
X –0.4 x RLdFw x tan(ArgDir=20°)
R 0.4 x RLdFw
X 0.5 x X1
set
R –0.23 x X1
set
X 0.8 x X1
set
R –0.37 x X1
set
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80%
3
50%
4
5
6
R (Ohm/phase)
7
13
c
20°
IEC05000368-4-en.vsdx
Comments
ArgLd = angle for the maximal load transfer
Exact: 0.8 x RFPPZx/2 (ArgDir=20°)
Exact –0.5 x R1
Exact –0.5 x R1
Testing functionality by secondary injection
x tan(ArgNegRes=30°)
set
x tan(ArgNegRes=30°)
set
Section 11
127