Signal cable EMC - QuickField simulation example
Mutual capacitance between a power cable and a nearby signal cable buried in a common duct, providing an electrostatic coupling measure for EMC analysis.
How to find mutual capacitance between power and signal cables?
Answer Typical applications Geometry
Given
Task
Solution Result
Engineering question
Use the capacitance-matrix calculator on the electrostatic cable model to obtain the mutual capacitance between the power and signal conductors.
power signal cable routes, underground cable ducts, mixed cable installations
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Simulation problem
Problem Type
Plane-parallel problem of Electrostatics.
The power cable consists of 4 isolated conductors A, B, C, 0.
Voltage U = 660 V, frequency f = 50 Hz.
The signal cable consists of 4 isolated conductors s1, s2, s3, s4.
Determine the mutual capacitance.
To calculate self and mutual capacitances of conductors the Capacitance calculator addin is used.
A
B
C
0
s2
s1
s4
s3
A
20.6 57.6 2.77 56.3 0.0231 0.0215 0.00743 0.008
B
20.6 58.0 2.75 0.932 1.27 0.525 0.324
C
20.6 57.5 0.525 1.24 0.932 0.324
0
20.6 0.00744 0.02147 0.023 0.008
s2
4.34 11.25 2.81 11.12
s1
3.11 11.24 2.83
s4
4.34 11.11
s3
5.47
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