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
Rating :
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
Featured Video
Jobs
Design Verification Engineer for Blockwork IT at Milpitas, California
Senior Platform Software Engineer, AI Server - GPU for Nvidia at Santa Clara, California
CAD Engineer for Nvidia at Santa Clara, California
Senior Firmware Architect - Server Manageability for Nvidia at Santa Clara, California
Sr. Silicon Design Engineer for AMD at Santa Clara, California
GPU Design Verification Engineer for AMD at Santa Clara, California
Upcoming Events
SEMICON Japan 2024 at Tokyo Big Sight Tokyo Japan - Dec 11 - 13, 2024
PDF Solutions AI Executive Conference at St. Regis Hotel San Francisco - Dec 12, 2024
DVCon U.S. 2025 at United States - Feb 24 - 27, 2025



© 2024 Internet Business Systems, Inc.
670 Aberdeen Way, Milpitas, CA 95035
+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