By Topic

Cable ampacity calculation in heterogenous soil using Finite Element Analysis

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Amin Mahmoudi ; Department of Engineering, Help College of Art and Technology, Klang, 41050 Selangor, Malaysia ; Solmaz Kahourzade ; David S. S. Lee

This paper presents a new approach for the determination of underground cable ampacity that considers natural convection of air inside a conduit and heterogeneous soil around the conduit, and compares calculated results with conduit-less considerations. It shows how ampacity of a buried cable is affected by thickness of the soil above it, and by the surrounding soil's heterogeneity and thermo-physical characteristic. Commercial ANSYS software for three-dimensional simulation of a 400kV polyethylene-paper cables with copper segments is used. The investigation yields numerical solutions for Fourier conducting heat transfer, continuity, energy, and momentum equations. Poor convection of air in conduit is shown to result in cable threshold temperature to be greater than that in conduit-less, other conditions being similar. Also results show that the longer the conduit, the lesser the acceptable ampacity. The proposed method gives criterion and flexibility to change strategy for situations which are not discussed in standard literatures on cable routing.

Published in:

Power Engineering and Optimization Conference (PEOCO), 2011 5th International

Date of Conference:

6-7 June 2011