Test point Reach Set value Comments
10 X 0.5 x X1
set
Exact –0.5 x R1
set
x tan(ArgNegRes-90)
R –0.23 x X1
set
11 X 0.8 x X1
set
Exact –0.5 x R1
set
x tan(ArgNegRes-90)
R –0.37 x X1
set
12 X 0.5 x X1
set
R 0.5 x R1
set
13 X 0 Only used when OperationLdCmp setting is 0 (Disabled)
R 0.5 x RFPP
Table 27: Test points for phase-to-earth L3-G (Ohm/Loop)
Test point Reach Value Comments
1 X (2 x X1
set
+X0
set
)/3
R 0
2 X (2 x X1
set
+ X0
set
)/3
R 2 x R1
set
+ R0
set
)/3
3 X 0.8 x (2 x X1
set
+ X0
set
)/3
R 0.8 x (2 x R1
set
+ R0
set
)/3
+RFPG
set
4 X 0.5 x (2 x X1
set
+ R0
set
)/3
R 0.5 x (2 x R1
set
+R0
set
)/3 +
RFPG
set
5
X 0.85 x RFPG
set
x tan(LdAngleset) LdAngle = angle for the maximal load transfer.
R 0.85 x RFPG
6 X RLdFwdset x tan(LdAngleSet)
R RLdFwd
set
7 X 0
R RLdFwd
set
8 X –02143 x RLdFwd
set
Exact: 0.8 x RFPG x tan (ArgDir)
R 0.8 x RLdFwd
set
9 X –0.8 x RLdFwd
set
x tan(ArgDir)
R 0.8 x RLdFwd
set
10 X 0.17 x (2 x X1
set
+ X0
set
) Exact: 0.5 x (2 x X1
set
X0
set
)/3
R -0.36 x (2 x X1
set
+ X0
set
) Exact: 0.5 x (2X1
set
+ X0
set
)/(3 x tan(AgNegDir90)
11 X 0.27 x (2 x X1
set
+X0
set
) Exact: 0.8 x (2 x X1
set
+ X0
set
)/3
R –0.57 x (2 x X1
set
+ X0
set
) Exact: 0.8 x (2X1set + X0set)/(3 x tan(AngNegDir 90))
Table continues on next page
Section 11 1MRK 504 165-UUS Rev. J
Testing functionality by secondary injection
118 Transformer protection RET670
Commissioning manual
© 2017 - 2021 Hitachi Power Grids. All rights reserved