×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Calculate electric bars
2

Calculate electric bars

Calculate electric bars

(OP)
Is there any body can tell me where can I find information about electric and mechanical efforts in the electric bars of a transformation center. I found some information of SF6 but I need more about other ways of isolating and even if there are programs or equations to set the layout of the bars and overcome the mechanical efforts of the electrical faults.

It´s to get some information for my end of career project so I'd thank any recommendation to bibliography or web.

RE: Calculate electric bars

There are several great references on the mechanical effects on bus structures due to short circuit currents. These references are:

-C. H. Van Asperen, AIEE Toronto Section Meeting of November 5, 1922, "Mechanical Forces on Busbars Under Short-Circuit Conditions" This paper was awarded the "First Paper Prize" for the year ,1922, by the AIEE. The paper is technical in nature and also discusses the predictions of theory with labortory  tests.

-Stanley C. Killian, Development and Research Engineer, Delta-Star Company. Electrical World Dec 12, 1942, "Mechanical Forces on Buses Due to Fault Currents"

-H. B. Dwight,Electrical World, Vol 70, September 15, 1917 page 522 "Repulsion Between Strap Conductors"

-C. W. Frick, GE Review, Vol 36, May 1933, page 232, "Electromagnetic Forces on Conductors With Bends, Short Lengths and Crossovers"

--H. B. Dwight, AIEE, presented at 36th  Annual Convention, June 20, 1920, "Calculation of Magnetic Force on Disconnecting Switches"

-H. K. Porter Company, Inc., Bulletin 38-E, Section 1, Power Conductors-Technical Data Section. This bulleting contains references to many articles by S.C. Killian of Delta-Star Company.

-ITE Circuit Breaker Company, Bulletin No.2603-2A, "Electrical Buses and Bus Structures" by William Deans, Copyright 1959.This 47 page bulletin is probably the most comprehensive summary of the the preceeding references. This publication presents several nomograms useful for bus design and I find it most useful when evaluating the existing  short circuit bracing on bus structures.

-Book by ALCOA, Alcoa Aluminum Bus Conductor Handbook,Copyright 1957. Chapter 6 "Short-Circuit Conditions" covers this topic and lists other references, some of those mention above and others.

RE: Calculate electric bars

Suggestions: Try to see practical aspects over manufacturers and industry standards too:
1. Go to
http://www.thomasregister.com
find companies which manufacture buses, e.g. Siemens, Cutler Hammer, Westinghouse, Busway Systems, etc. and ask them for engineering/design literature which is usually helpful for applications.
2. Try libraries for literature, e.g.
2a. Standard Handbook for Electrical Engineers
2b. IEEE Standards 141, 241, 242, 605, C37.20.1, C37.20.2, C37.20.3, etc.
2c. NEMA Standard BU1
2d. ANSI/UL Standard 857  

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close