Smart questions
Smart answers
Smart people
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login




Remember Me
Forgot Password?
Join Us!

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!
  • 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!

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

Donate Today!

Do you enjoy these
technical forums?
Donate Today! Click Here

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.
Jobs from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

PAP (Electrical)
10 Nov 04 23:42
All
 I have some questions about the temperature rise test for dry type transformer according to IEC 60076. What 're the meanings for this test, Can the test result infer to the operating temperature for transformer?
====================================
 The method of standard is test by combining the short-circuit test(load loss) and the open circuit test(no-load loss)
 Short circuit test performed by inject reated current flowing in one winding and the other winding short circuited, measure temperature rise at steady-state condtion.
 Open circuit test performed by supply rated voltage and frequency until steady state is reaced, measure tempeature rise for this condition.
 Then calculation is applied by formula : Ttotal = Ts(1+(Te/Ts)^1.25)^0.8

 Ttotal = total winding temp rise.
 Ts = temp rise @ short circuit
 Te = temp rise @ open circuit.

=====================
 How can I have the figure of normal operating temperature of transformer?
 Thank every suggest opinion.

PAP

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!

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