Tettex MIDAS micro 2883 - Parallel & Series Equivalent Circuits

16
Theory
C
X
=50pF (tan δ < 0.01), f=50Hz 
kV
F
uA
U
Test
91.
1
105050
2
30
12
min
=
⋅⋅⋅
⋅
=
−
π
5.9 Parallel & Series Equivalent Circuits
The MIDAS micro 2883 measures the parallel equivalent circuit values.
The following formulas describe the calculation of the value conversion parallel – series :
Parallel equivalent circuit C
p
-R
p
**tan
1
Cp
Rp
⋅⋅
=
δω
* measured values
Series equivalent circuit C
s
-R
s
Cs Cp= ⋅ +* ( tan *)1
2
δ
Rs Rp= ⋅
+
tan *
tan *
2
2
1
δ
δ
* measured values