×
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

Fusing in the Transformer

Fusing in the Transformer

Fusing in the Transformer

(OP)
I’m about to order a transformer and was wonder if I need fusing in the transformer to protect the secondary buss?

 I have 13.2KV going through a fused (175E fuse) disconnect to a 13.2kv to 480v, 2500kva, Delta-wye, Transformer then feeding a MCC through a 3200a breaker.  I do not have any protection from the secondary of my transformer to the 3200a breaker.   Do I need it?  Any help would be appreciated.

RE: Fusing in the Transformer

Normally you will not see and protection other than the main breaker in the MCC.

RE: Fusing in the Transformer

What is the distance between your xfo and the secondary main breaker?

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