×
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

pls help for this

pls help for this

pls help for this

(OP)
Hi can any one help pls.

I have mv cb provided by oc/ef relay supplying dist transformer.

When main feeder trip this cb also trip for information this yransformer on seprate feeder but from one main sustation.

Thank you

RE: pls help for this

You are welcome!

WHAT was the question?

Gunnar Englund
www.gke.org
--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.

RE: pls help for this

(OP)
Sorry for all :)

I have RMU switchgear connected to transformer 500 kva (package sustation)

And this substation getting supply from main distrbution feeder 11 kv

My question :

When some feeder from the grid station trip the package substation CB trip?

Why the circuit breaker which connected to transformer trip due to other main feeder trip?

I hope my quiestion is clear.

Thanx all.

RE: pls help for this

(OP)
this is sketch for my quz

when feeder 1 trip the transformer 500 kva trip also.

RE: pls help for this

Is there an under voltage relay in the cb control at the 500 kva unit ?

Is there any targets ?

RE: pls help for this

(OP)
thanx for reply

no the device which installed over current and earth fault only .
and the transformer load almost 90 % of nominal capacity .

RE: pls help for this

What transformer protection was operated, overcurrent or earth fault?
What type of relay is installed, what settings of overcurrent and earth fault.
what Uk of transformer? and what type of load on the transformer ?( maybe motors).

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