Measuring The Operating Limit Of Set Values - ABB Relion 670 Series REL670 Commissioning Manual

Section 10
Testing functionality by secondary injection
10.4.6.1
106
Table 25: Test points for phase-to-earth loop L3-E (Ohm/loop)
Test point Value
1 X [X1+XN]
R 0
2 X 0
R RLdFw
3 X 0.85·[X1+XN]
R 0.85·[X1+XN]·1/tan(60°)+RFFwPE
4 X 0.85·[X1+XN]
R -0.85·[X1+XN]·
tan (AngNegRes-90°)
5 X RFFwPE·tan (ArgLd)
R RFFwPE
6 X -0.5·RLdFw·tan (ArgDir)
R 0.5·RLdFw
The table showing test points for phase-to-earth loops is used together with figure 22.
Table 26: Test points for phase-to-phase loops L1–L2
Test point Value
1 X X1
R 0
2 X 0
R RLdFw
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°)
5 X 0.5·RFFwPP·tan (ArgLd)
R 0.5·RFFwPP
6 X -0.5·RLdFw·tan (ArgDir)
R 0.5·RLdFw
The table showing test points for phase-to-phase loops is used together with figure 23.

Measuring the operating limit of set values

Procedure:
1MRK 506 355-UEN A
Comments
XN=(X -X )/3
0 1
R≈0.491·(X1+XN)+RFFwPE
Comments
R=0.491·X1+0.5 RFFwPP
Line distance protection REL670 2.1 IEC
Commissioning manual