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Detection and analysis of high voltage electrical equipment corona discharge based on ultraviolet imaging technology

  • Li Yongxiang
  • , Wang Tianzheng
  • , Guo Liqiang
  • , Wang Zhipeng
  • , Guo Ting
  • , Cheng Xueting
  • Shanxi Provincial Electric Power Corp

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

Abstract

The corona discharge phenomena of electrical equipment are generated with the increasing of insulation aging, electrical equipment, surface filth or atmospheric humidity. The corona discharge will cause the waste of power energy, radio interference, audible noise, insulation aging, and these defects are great threats to the safety and stability of electrical equipment. Using appropriate method to detect the operational state of electrical equipment is always significantly concerned by operation department. In this paper, the different corona discharge defect part of high voltage electrical equipment are summarized such as the grading ring, drop wire, jumper and over line, spacing rods, tube bus end and connecting joint. While the photon numbers of corona discharge under different defects are measured by the ultraviolet imager. The result shows that: the corona discharge characteristics of electrical equipment are different under the different defect type, and the photon number increases with the rising of the applied voltage. The detected photon number varies with different kinds of defects through applying same voltage. The ultraviolet imager shows the excellent performance in the detection of discharge defects and thus it can be prospectively used in the operation state detection of electrical equipment.

Original languageEnglish
Title of host publicationProceedings of the 29th Chinese Control and Decision Conference, CCDC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6928-6931
Number of pages4
ISBN (Electronic)9781509046560
DOIs
StatePublished - 12 Jul 2017
Externally publishedYes
Event29th Chinese Control and Decision Conference, CCDC 2017 - Chongqing, China
Duration: 28 May 201730 May 2017

Publication series

NameProceedings of the 29th Chinese Control and Decision Conference, CCDC 2017

Conference

Conference29th Chinese Control and Decision Conference, CCDC 2017
Country/TerritoryChina
CityChongqing
Period28/05/1730/05/17

Keywords

  • Corona Discharge and Case Analysis
  • High Voltage Equipment
  • Ultraviolet Imaging Technology

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