QuickField

A new approach to field modelling

Main >> Applications >> Sample problems

Suspension insulator

suspension electric insulator FEA finite element analysis, electric field in the insulator

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

Problem Type: electrostatics.

Geometry: 3D import.
Suspension insulator Disc insulators are connected in chain of two. The insulators are suspended from the grounded tower arm and carry HV power line conductor HV conductor Insulator GND

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

Task:
Calculate the electric field stress distribution on insulators surface.

Solution:
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).

Results:
Electric field stress distribution along the suspension insulators' surface.

suspension insulator electric stress

  • Video: Suspension insulator
    00:00 Introduction
    00:50 Transfer CAD model to QuickField through STEP file export/import.
    02:40 Adding background region to the model. Selecting objects
    03:40 Body labels' assigning. Hide/made transparent the body.
    06:10 Selecting with rubber band.
    07:05 Edit body labels physical properties
    08:05 Boundary conditions on faces.
    10:55 Model meshing and problem solving
    11:25 Result analysis. Colored surface. Cut by plane.
    12:55 Result analysis. 2D Section window local values, integrals. XY-plot along the custom contour. Local values, integrals.
    15:40 Result analysis. Local values, integrals.
    16:05 Result analysis. Change presentation types: slice plot, vectors, scatter plot. XY-plots.
  • Watch on YouTube

  • Download simulation files (files may be viewed using any QuickField Edition).
  • New version QuickField 6.4

    Product
    Order
    Evaluation request
    Editions
    Version history
    Packages
    Components
    Programming
    Consulting

    Applications
    Industrial
    Educational
    Scientific
    Sample problems
    Success stories
    Customers

    Support
    Webinars
    Virtual Classroom
    Online courses
    Customer login
    Glossary
    QuickField help
    FAQ

    Downloads
    QuickField Student Edition
    User manual
    Data Libraries
    Video
    Free tools

    News
    Product News
    Events
    Publications
    Subscription

    Contacts
    Tera Analysis info
    Resellers
    Contact us
    Online chat
    About us