×
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

fused Petersen coil?

fused Petersen coil?

fused Petersen coil?

(OP)
Hello,
in our company we have 6kV resonant grounded grid. The issue is that between neutral point of 6kV transformer winding and Petersen coil are 2x 80A fuses (those fuses are paralel, so they will hold 160A). Those fuses are there since begining (aprox. 40-50 yrs).
Petersen coil is protected against faults in itself by Buchholz relay, that will shutdown whole transformer. So we doubt it could be useful there.
I think it could cause just problems.
Could someone please bring some light into this? Does it have some pros? What could cause disconnection (by fuse) of Petersen coil during earth fault? (i think it may cause to strike arc in place of ground fault)

Thanks for every reply.

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