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Main >> Applications >> Sample problems

Bus-bars - QuickField simulation example

This model presents two copper bus-bars. One bus-bar is straight, other is bended by 90 degrees and both are positioned in the parallel planes.

Engineering question

How to find electric field between adjacent busbars?

Answer
Set up a 3D QuickField Electrostatics problem for an adjacent busbar arrangement and evaluate electric field between busbars from computed field results.

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Typical applications
power busbar systems, switchgear busbars, substation conductor layouts

Bus-bars

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Simulation problem

Problem Type electrostatics.

Geometry 3D extrusion / 3D import.
Bus-bars electric stress This model presents two copper bus-bars. One bus-bar is straight, other is bended by 90 degrees and both are positioned in the parallel planes. Bar #2 Bar #1 Bar #1 Bar #2 100 mm 100 mm 150 mm

Given
Relative permittivity of air ε = 1,
Bar #1 voltage +10 kV, Bar #2 voltage -10 kV.

Task
Find the electric field distribution.

Solution
The geometry model could be constructed two ways: by 3D extrusion or using 3D import.

Results
Electric field stress distribution between the bars.
Electric field stress distribution between the bars

Video

  • 3D model creation in FreeCAD

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