×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

Overvoltage Transients Simulation

Overvoltage Transients Simulation

Overvoltage Transients Simulation

(OP)
Dear members,

I would appreciate if i can some suggestions regarding literature and publications or examples related to the modelling of networks for switching overvoltages.

Thank you.

RE: Overvoltage Transients Simulation

If you go to the ATP website, they have a lot of material on modelling.  ATP stands for the Alternate Transients Program.  It was offered as a free alternative to the EMTP program (Electromagnetic Transients Program) which was owned by EPRI.

Allan Greenwood had a pretty good book on transients, Electrical Transients in Power Systems.  I'm sure others will post suggestions.

What is your main interest - Line switching, capacitor bank switching, etc. - or all of the above?

RE: Overvoltage Transients Simulation

(OP)
Hello thanks for the reply, my main interest at the moment is long cables (subsea) switching, but looking forward to develop my knowledge in other areas as well.

I am reviewing these 3 references but would like to know if there are any other recommendations:
- Transients in Power Systems - L. van der Sluis
- Power System Transients - Parameter Determination - J. Martinez-Velasco
- Power Systems Electromagnetic Transients Simulation - N. R. Watson  

Thank you.

RE: Overvoltage Transients Simulation

I second magoo's suggestion regarding the Greenwood book - it is probably considered the classic text for EMT.

Dommel's EMTP theory book (www.dee.ufrj.br/Transm_Energia/Arquivos/EMTPTB.PDF) is also pretty good (and also free).  

RE: Overvoltage Transients Simulation

(OP)
Hello thanks for the reply, as i can see these are a lot of reading material.

Now i know exactly what i need to model. It is a switching over-voltage following a fault (breaker opening). The network is mainly passive (no generation just public grid) and the loads are static.

So my question is what is needed to be modeled as opposed to steady-state modelling. For example if the switching event was for energization the transformer core saturation should be modeled accurately along with the stray capacitance but in this case i guess only the stray capacitance is important.

Finally what would be the equivalent model for the cables going away from the fault point (i.e. away from the point of interest).

Thank you.

RE: Overvoltage Transients Simulation

I would usually model one bus back from the switching point and use a source impedance behind that.  For a breaker switching, this might involve a transformer behind the breaker.  In addition, the load would have to be modelled in a fair amount of detail.

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!


Resources