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Study on adaptive three-step current protection

  • Jiaozuo Electric Power Corporation

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To improve selectivity and sensitivity of conventional three-step current protection used by power supply and distribution line protection, theory and key technologies of adaptive three-step current protection are presented. It can calculate and update settings online automatically according to changes of power system's operating mode, fault type and line's load. Comparison with conventional three-step current protection is carried out. Results of sample analyzing indicate that adaptive three-step current protection can enlarge protection scope and improve selectivity and sensitivity. So, reliability and security of power supply and distribution line operation are improved.

Original languageEnglish
Title of host publication2006 China International Conference on Electricity Distribution, CICED 2006
Pages428-432
Number of pages5
Edition527 CP
StatePublished - 2006
Event2006 China International Conference on Electricity Distribution, CICED 2006 - Beijing, China
Duration: 17 Sep 200620 Sep 2006

Publication series

NameIET Conference Publications
Number527 CP

Conference

Conference2006 China International Conference on Electricity Distribution, CICED 2006
Country/TerritoryChina
CityBeijing
Period17/09/0620/09/06

Keywords

  • Adaptive protection
  • Power supply and distribution line
  • Settings of protection
  • Three-step current protection

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