×
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

Current Differential Vs Distance relay

Current Differential Vs Distance relay

Current Differential Vs Distance relay

(OP)
Can someone explain why distance relaying is generally faster than line current differential scheme for in zone faults.

RE: Current Differential Vs Distance relay

No need to wait for communications from the other end.

RE: Current Differential Vs Distance relay

(OP)
thanks David

RE: Current Differential Vs Distance relay

current differential scheme is a unit-protection.
distance relaying needs telecommunication to be a unit-protection.
I did not understand David post.

RE: Current Differential Vs Distance relay

(OP)
What David meant was that in order to make a Trip or Restrain decision, the current diff scheme must wait to receive information packets from the remote end via comms. network which could either be via multiplexer or direct fibre

RE: Current Differential Vs Distance relay

Assume this is line differential, and not bus or transformer differential.

RE: Current Differential Vs Distance relay

Check the OP. winky smile

RE: Current Differential Vs Distance relay

Sorry for my ignorance. What do you mean: Check the OP?

RE: Current Differential Vs Distance relay

OP> original poster or original post.

Bill
--------------------
"Why not the best?"
Jimmy Carter

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