×
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

1+ pad mount transformer

1+ pad mount transformer

1+ pad mount transformer

(OP)
Can we feed a 1Ø pad mount transformer, from 2 different directions? It is the same phase both directions. Thank you, Bob

RE: 1+ pad mount transformer

What do you mean by "2 different directions"? Would that be from East and West, or from high-to-low and low-to-high, or some other version of different directions?

RE: 1+ pad mount transformer

(OP)
East to West, same phase. Thank you, Bob

RE: 1+ pad mount transformer

There are transformers available in a "loop feed" configuration for just that purpose.

RE: 1+ pad mount transformer

Generally even with loop feed bushings you will keep one feed parked for future use. Otherwise, a fault on one feed will clear both and there is no advantage to having two.

RE: 1+ pad mount transformer

Is there some myth that two sources means you will never have a power outage?

Many distribution circuits can be fed from more than one direction, but it takes operating a switch (or moving a cable from a parking stand) to change the feed. The problem is to find the faulted section before switching. It's much harder to do on underground circuits, although the public seems to believe the underground is more reliable (another myth).

Now if you are asking about enhanced power service, it will typically cost you more. But it won't mean you won't have any outages, just fewer, and shorter outages.

RE: 1+ pad mount transformer

Might also be worth mentioning, in light of some ambiguity in your description, that if you meant that H1 and H2 of your pad mount transformer primary would be fed from the same phase, the direction from which those cables originated would be a moot point!

"Will work for (the memory of) salami"

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