Epoxy spacer in HVDC gas insulated transmission line

QuickField simulation example

The spacer is used to support the conductor inside the outer housing.

Problem Type
3D-import electrostatics.

Geometry

Given
Electric permeability of SF₆ gas is 1;
Electric permeability of epoxy is 7;
High voltage HVDC = 100 kV

Task
Analyze the spacer's surface charge distribution and the related electric field.

Solution
Geometric model is built in a third-party CAD and imported into QuickField.
There is no field inside the metal conductors, so only the spacer and the gas- insulation are included in the model. An electric potential is set on the conductor's surface.

Results
Surface charge density [C/m²] distribution along the spacer surface.

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