ABB RET670 Commissioning Manual page 101

1MRK 504 154-UUS B
Test point
10
11
12
13
Table 24: Test points for phase-to-earth L3-G (Ohm/Loop)
Test point
1
2
3
4
5
6
7
8
9
10
11
Table continues on next page
Commissioning manual
Reach Set value
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
Reach Value
X (2 x X1 +X0 )/3
set set
R 0
X (2 x X1 + X0 )/3
set set
R 2 x R1 + R0 )/3
set set
X 0.8 x (2 x X1 + X0
set
R 0.8 x (2 x R1 + R0
set
+RFPG
set
X 0.5 x (2 x X1 + R0
set
R 0.5 x (2 x R1 +R0
set
RFPG
set
X 0.85 x RFPG x tan(LdAngleset)
set
R 0.85 x RFPG
X RLdFwdset x tan(LdAngleSet)
R RLdFwd
set
X 0
R RLdFwd
set
X –02143 x RLdFwd
R 0.8 x RLdFwd
set
X –0.8 x RLdFwd
set
R 0.8 x RLdFwd
set
X 0.17 x (2 x X1 + X0
set
R -0.36 x (2 x X1 + X0
set
X 0.27 x (2 x X1 +X0
set
R –0.57 x (2 x X1 + X0
set
Comments
Exact –0.5 x R1
Exact –0.5 x R1
Only used when
(Disabled)
Comments
)/3
set
)/3
set
)/3
set
)/3 +
set
LdAngle = angle for the maximal load transfer.
Exact: 0.8 x RFPG x tan (ArgDir)
set
x tan(ArgDir)
) Exact: 0.5 x (2 x X1
set
) Exact: 0.5 x (2X1
set
) Exact: 0.8 x (2 x X1
set
) Exact: 0.8 x (2X1set + X0set)/(3 x tan(AngNegDir 90))
set
Testing functionality by secondary injection
x tan(ArgNegRes-90)
set
x tan(ArgNegRes-90)
set
OperationLdCmp setting is 0
X0 )/3
set set
+ X0 )/(3 x tan(AgNegDir90)
set set
+ X0 )/3
set set
Section 10
95