Detection of broken conductors using the positional protection technique

M A Redfern, Z Q Bo, D Montjean

Research output: Contribution to conferencePaper

3 Citations (Scopus)

Abstract

This paper describes the application of the positional protection technique to detect a broken conductor in a distribution system. A specially designed transient capture unit is used to extract the fault generated high frequency voltage transient signals from the distribution line system. The fault could either be a short circuit on the feeder or a broken conductor. The travelling times of these transients are used to determine the position of the fault and to initiate circuit breaker operation. The scheme is insensitive to the type of fault any subsequent fault resistance to ground, the inception angle at the time of break and system source configuration. Studies show that the proposed technique is able to offer high speed in detecting a broken conductor or a short circuit and very high accuracy in fault location
Original languageEnglish
Pages1163-1168 vol.2
Publication statusPublished - 2001
EventPower Engineering Society Summer Meeting, 2001. IEEE -
Duration: 1 Jan 2001 → …

Conference

ConferencePower Engineering Society Summer Meeting, 2001. IEEE
Period1/01/01 → …

Keywords

  • distribution line system
  • transient capture unit
  • power system transients
  • distribution system
  • inception angle
  • transient based protection
  • circuit breaker operation
  • power distribution faults
  • power system protection
  • conductors (electric)
  • positional protection technique
  • broken conductors detection
  • transient travelling times
  • fault generated high frequency voltage transient signals
  • system source configuration
  • short circuit
  • fault location
  • feeder short circuit
  • fault resistance to ground
  • short-circuit currents

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