All Categories : Technical Papers : AC/DC Electromagnetics Bookmark and Share

Title : Time-Dependent Analysis of Electromagnetic Effects and Forces on Cleats Due to the Short Circuiting of Single Core Cables Installed in Trefoil Formation
Company : Comsol
Date : 04-May-2013
Downloads : 33

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

Featured Paper by M.S. Yeoman

Trefoil cable formation is used where three phases are carried by three single core power cables rather than a single multicore cable. The advantage of installing three single core cables in such a configuration is that it minimizes the induction of eddy currents, which reduce the effect of localized heating, while maintaining the current carrying capacity of the circuit. Trefoil cleats, are structures used to hold the three single core power cables in a trefoil form, along the length of the laid cables. Manufacturers of trefoil cleats are required to physically test their cleat designs to failure in an applied test, where a section of three single core power cables are held with the cleats and then short circuited. The resulting high dynamic electromagnetic forces being produced from the short circuiting of the three single phase cables, need to be held & maintained by the trefoil cleat. These, physical test can be costly in terms of both cost & time. In order to reduce the cost of trefoil cleat design & development, a time-dependent COMSOL Multiphysics model, including currents, induced electromagnetic forces, material plasticity & contact analysis has been set up to fully describe and simulate the dynamic load conditions on the cable & cleat design. Comparisons to physical tests & calculations using the test standard & empirical data show excellent comparisons. The model developed can now be used to quickly assess trefoil cleat designs without the huge expense & time.
User Reviews More Reviews Review This File

 True Circuits: Ultra PLL

Featured Video
Latest Blog Posts
Bob Smith, Executive DirectorBridging the Frontier
by Bob Smith, Executive Director
Virtual 2020 CEO Outlook Set for June 17
Colin WallsEmbedded Software
by Colin Walls
Multiple constructors in C++
Senior Application Engineer Formal Verification for EDA Careers at San Jose and Austin, California
Software Engineer for EDA Careers at RTP, North Carolina
Senior Analog Design Engineers #5337 for EDA Careers at EAST COAST, California
Senior Layout Engineer for EDA Careers at EAST COAST, California
Upcoming Events
Sensors Expo & Conference at McEnery Convention Center 150 W. San Carlos Street SAN JOSE CA - Jun 22 - 24, 2020
Nanotech 2020 Conference and Expo at National Harbor MD - Jun 29 - 1, 2020
IEEE Computer Society Annual Symposium on VLSI (ISVLSI) 2020 at Limassol Hotel, Amathus Area, Pareklisia Cyprus - Jul 6 - 8, 2020
57th Design Automation Conference 2020 at San Francisco CA - Jul 19 - 23, 2020
DownStream: Solutions for Post Processing PCB Designs
Verific: SystemVerilog & VHDL Parsers

© 2020 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