ABB Relion 670 Series Commissioning Manual page 109

1MRK 506 371-UUS E
Test point
4
5
6
7
8
9
10
11
12
13
Table 20
40% of RLdFwd
80% of RLdFwd
RFPG (Load
encroachment)
ANSI05000369 V2 EN-US
Figure 24: Distance protection characteristic with test points for phase-to-ground
Line distance protection REL670
Commissioning manual
Reach Set value
X 0.5 x X1
set
R 0.5 x R1 + RFPP/2
set
X 0.85 x RFPP x tan (ArgRLd)
R 0.85 x RFPP
X RLdFw x tan (ArgLd)
R RLdFw
X 0
R RLdFw
X –0.2143 x RFPP/2
R 0.8 x RFPP/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
X 0.5 x X1
set
R 0.5 x R1
set
X 0
R 0.5 x RFPP
is used in conjunction with figure 23.
2
1
80%
11
50%
10
12
120°
a
9
8
alt. 80% of
RFPG
measurements
© Copyright 2017 ABB. All rights reserved
Comments
ArgLd = angle for the maximal load transfer
Exact: 0.8 x RFPP/2 (ArgDir=20°)
Exact –0.5 x R1
Exact –0.5 x R1
Only used when RLdFw > 0.5 x RFPP
3
4
5
6
7 13
20°
ANSI05000369-2-en.vsd
Testing functionality by secondary injection
x tan(ArgNegRes=30°)
set
x tan(ArgNegRes=30°)
set
Section 11
103