Jul 9, 2014 #1 dfdt Electrical Sep 10, 2002 118 Can someone explain why distance relaying is generally faster than line current differential scheme for in zone faults.
Can someone explain why distance relaying is generally faster than line current differential scheme for in zone faults.
Jul 9, 2014 #2 davidbeach Electrical Mar 13, 2003 9,495 No need to wait for communications from the other end. Upvote 0 Downvote
Jul 14, 2014 #4 odlanor Electrical Jun 28, 2009 689 current differential scheme is a unit-protection. distance relaying needs telecommunication to be a unit-protection. I did not understand David post. Upvote 0 Downvote
current differential scheme is a unit-protection. distance relaying needs telecommunication to be a unit-protection. I did not understand David post.
Jul 14, 2014 Thread starter #5 dfdt Electrical Sep 10, 2002 118 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 Upvote 0 Downvote
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
Jul 15, 2014 #6 cranky108 Electrical Jul 23, 2007 6,293 Assume this is line differential, and not bus or transformer differential. Upvote 0 Downvote
Jul 15, 2014 #8 odlanor Electrical Jun 28, 2009 689 Sorry for my ignorance. What do you mean: Check the OP? Upvote 0 Downvote
Jul 15, 2014 #9 waross Electrical Jan 7, 2006 27,422 OP> original poster or original post. Bill -------------------- "Why not the best?" Jimmy Carter Upvote 0 Downvote
