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Signal cable EMC

QuickField simulation example

Power and signal cable are buried in a common duct. Calculate the electric field distribution and find the mutual capacitance.

Problem Type
Plane-parallel problem of Electrostatics.

Geometry
Flat cable crosstalk 28 AVG 0.050" pitch flat ribbon cable Signal cable Power cable Duct 0 C A B

Given
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.

Task
Determine the mutual capacitance.

Solution
To calculate self and mutual capacitances of conductors the Capacitance calculator addin is used.

Result

Capacitance matrix, pF
A B C 0 s2 s1 s4 s3
A 20.657.62.7756.30.02310.02150.007430.008
B 20.658.02.750.9321.270.5250.324
C 20.6 57.50.5251.240.9320.324
0 20.60.007440.021470.0230.008
s2 4.3411.252.8111.12
s1 3.1111.242.83
s4 4.3411.11
s3 5.47

power cable EMC simulationsignal cable stress