ABB RED670 Commissioning Manual page 122

Section 11
Testing functionality by secondary injection
X +
( 1
ANSI09000734 V2 EN-US
Figure 31:
X1
ANSI09000735 V1 EN-US
Figure 32:
116
X
1
4
85%
XN )
ArgNegRes
6
50% of RLdFwd
RFltFwdPG
Operating characteristic for phase selection function, forward direction single-phase
faults
(
X
1
4
85%
ArgNegRes
6
50% RLdFwd
0.5·RFltFwdPP
Operating characteristic for phase selection function, forward direction phase-to-phase
faults
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W
( / loop )
3
5
2
7
ANSI09000734-2-en.vsd
W
/ phase )
3
LdAngle
5
60°
2
7
ArgDir
ANSI09000735-1-en.vsd
1MRK 505 378-UUS Rev. J
( )
W
loop
/
R
W
( / phase )
R
Line differential protection RED670
Commissioning manual