All Categories : Technical Presentations Bookmark and Share

Title : FEM Modeling of Electric Field and Potential Distributions of MV XLPE Cables Containing Void Defect
Company : Comsol
Date : 28-Mar-2013
Downloads : 4

Rate This File
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Featured Paper by M. Alsharif, P. Wallace, D. Hepburn & C. Zhou

Failure in cable insulation is generally preceded by a degradation phase that may last several years. A significant cause of cable system failures is the breakdown of electrical insulation between the electrodes. The operational stresses that occur in cable insulation which include thermal, mechanical and electrical effects will vary with time and can cause degradation due to the resulting physical and chemical changes in cable properties. It is widely recognized, irrespective of the causative mechanism, that degradation results in partial discharges (PDs) being generated at the degradation site(s). PDs are small electrical discharges produced by local enhancement of the electrical stress due to conditions around the fault. The internal discharge in insulation material and/or at its interface is caused by the strong and inhomogeneous electrical fields that are usually caused by voids, bubbles, or defects. Treeing discharge is also associated with internal discharge, and it starts from conducting particles or a void in solid insulation. This paper investigates the electric stress within an armoured XLPE insulated cable containing a void-defect. The finite element model of the performance of an armoured XLPE MV underground cable containing void-defect is developed using the COMSOL multiphysics. Use of COMSOL Multiphysics (Electrostatic model): a two-dimensional model of a single-core Cross-Linked Polyethylene (XLPE) cable containing a void-defect has been developed using the COMSOL multi-physics environment. The electrical field distribution in a typical cable construction, is described by a two-dimensional field model. The model is solved for a non-degraded system configuration as a base for further analysis. In addition, an air-filled void is introduced into the model cable insulation to investigate the effect of void presence on the XLPE electrical field insulation system.
User Reviews More Reviews Review This File
Aldec

Featured Video
Jobs
Hardware Design Engineer for FlexRadio at Austin, Texas
Principal Engineer, Firmware Engineering for Western Digital at Milpitas, California
Electronics Component Engineer for Lockheed Martin at Huntsville, Alabama
Principal Engineer - ASIC Implementation for Microchip at Portland, Oregon
Engineer Applications for Microchip at San Jose, California
Embedded Firmware Engineer for FlexRadio at Austin, Texas
Upcoming Events
PCI-SIG DevCon US 2019 at santa clara convention center Santa Clara CA - Jun 18 - 19, 2019
2019 FLEX Korea at COEX Seoul Korea (South) - Jun 19 - 20, 2019
Sensors Expo & Conference 2019 at McEnery Convention Center San Jose CA - Jun 25 - 27, 2019
Nanotech 2019 at Tokyo Big Sight East Halls 4-6 & Conference Tower Tokyo Japan - Jun 30 - 1, 2019
DownStream: Solutions for Post Processing PCB Designs
Verific: SystemVerilog & VHDL Parsers
TrueCircuits: UltraPLL



Internet Business Systems © 2019 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise