Omicron CP TD1 - Negative DF Measurements

CP TD1 Reference Manual V 1.44
130
12.2 Negative DF Measurements
Surface
current
R
C
11
C
12
C
13
C
1n-1
C
1n
C
2
C
1a
1
1
C
11
--------
1
C
12
--------
1
C
13
-------- …+++
----------------------------------------------------=
Z
i
0Ω≈
Measuring tap
C
1
U
2
U
1
1
1
1
R
--- jωC
1n
+
jωC
1a
------------------------- -+
-----------------------------------
×=
U
1
C
1a
C
1n
R
U
2
I
C1n
Bushing