×
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

surge arrester for indoor dry-type transformer

surge arrester for indoor dry-type transformer

surge arrester for indoor dry-type transformer

(OP)
Refers to IEEE Std 242-1986 item 10.8.2.1-surge arresters:
..... ventilated dry-type and sealed dry-type transformers are normally used indoors and surge protection is necessary....

Do you install special low spark-over distribution-type arresters in all transformers as suggested by buff book?
 

RE: surge arrester for indoor dry-type transformer

(OP)
I guess  this thread  needs more explanation:
Industrial System Power Handbook (Beeman) shows at Fig. 5.24 Application of lightning arresters for the protection of metal-clad switchgear which is connected to exposed overhead lines.
We adopt this philosophy.

IEEE Std 242-1986 (Buff book) extend application for indoors dry-type transformer at item 10.8.2.1-surge arresters:
.......
Ventilated dry-type and sealed dry-type transformers are normally used indoors and surge protection is necessary. Since all systems have the potential for transmitting and reflecting primary and secondary surges caused by lightning and system disturbances, special low spark-over distribution-type arresters have been developed for the protection of dry-type transformers and rotating machinery.

Have you been adopted this philosophy for indoors dry-type transformers?
 

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