Main >>Applications >> Sample problems >> 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.