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Suspension insulator

Disc insulators are connected in chain of two. The insulators are suspended from the grounded tower arm and carry HV power line.

Problem Type: electrostatics.

Geometry: 3D import.

Relative permittivity of the insulator (glass) εr = 5,
Transmission line potential V = 10 kV (RMS, line voltage).
Ground voltage = 0 V.

Calculate the electric field stress distribution on insulators surface.

Line voltage is measured between the phase conductors. The phase voltage (between phase conductor and ground) is √3 times smaller than the line voltage.
We should specify the peak voltage value (*√2).

Electric field stress distribution along the suspension insulators' surface.

Download Download simulation files.