ABB Relion 670 Series REL670 Commissioning Manual page 102

Section 10
Testing functionality by secondary injection
96
Test point Reach Value
5 X RFFwPE·tan (ArgLd)
R RFFwPE
6 X -0.5·RLdFw·tan (ArgDir)
R 0.5·RLdFw
Table 19 is used together with figure 16.
4
X1
50% RLdFw
IEC09000735 V3 EN
Figure 17: Operating characteristic for phase selection function, forward
direction phase-to-phase faults
Table 20: Test points for phase-to-phase loops L1–L2 (Ohm/phase)
Test point Reach Value
1 X X1
R 0
2 X 0
R RLdFw
R 0,5·RFFwPP
3 X 0.85·X1
R 0.85·X1·1/tan(60°)+0.5 RFFwPP
4 X 0.85·X1
R -0.85·X1·tan (AngNegRes-90°)
Table continues on next page
W
( / phase )
X
1
85%
5
ArgNegRes
2
7
6
ArgDir
0.5·RFFwPP
1MRK 506 355-UEN A
Comments
Only when RLdFw < RFFwPE
3
ArgLd
60°
W
( / phase
R
IEC09000735-3-en.vsd
Comments
When RLdFw < 0,5·RFFwPP
When RLdFw > 0,5·RFFwPP
R=0.491·X1+0.5 RFFwPP
Can be limited by RFFwPP
Line distance protection REL670 2.1 IEC
Commissioning manual
)