×
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

Current limiting reactor sizing for capacitor banks

Current limiting reactor sizing for capacitor banks

Current limiting reactor sizing for capacitor banks

(OP)
Are there any other considerations besides inrush, outrush and transient frequency when sizing current limiting reactors for capacitor banks?  I am expanding an isolated 67 MVA 119 kV capacitor bank to 112 MVA and need to replace the current limit reactors that have an impedance of 5000 uH with ones that have a higher continuous current rating.  

Using IEEE 1036 to calculate the inrush, outrush & frequency, I have found that 1000 uH would limit all of these to below the circuit breaker limits.  Do I need to consider just the capacitor bank breaker, or also the other eight circuit breakers on the substation bus?  The larger reactors cost more than twice as much, so I would definitely like to use the smaller ones if possible.

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