Preemptive Arc Fault Detection Techniques in Switchgear - Part III: From the Laboratory to Practical Installation

G. Amjad Hussain, Muhammad Shafiq, John A. Kay, Matti Lehtonen

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)


The major types of slowly developing faults, which can lead to arc faults in switchgear and controlgear, such as partial discharge, arcing, and heating due to poor connections, can now be successfully detected and monitored. In parts I and II of this paper series, a detailed review of the immediate causes of arc faults, along with an overview of preignition and postignition methods for its mitigation, was presented. Various hybrid nonintrusive sensors were developed in the laboratory to implement preignition detection techniques. The major types of slowly developing electrical faults were created in the laboratory, and the sensors were employed to evaluate their performance along with an effective signal processing technique. Part III of the work is based on the successful performance of the sensors outside of laboratory conditions. Hybrid sensors have been installed in a real-world application, i.e., switchgear located in substations. This paper presents interesting results about this practical application and includes valuable discussion on the performance evaluation of different sensors, which further justifies the usefulness of the new sensors for online condition monitoring of switchgear, controlgear, and cable termination boxes. The implementation of this technology in industry may provide promising results in avoiding major accidents such as arc-flash in the switchgear and controlgear.

Original languageEnglish
Article number6923467
Pages (from-to)2615-2623
Number of pages9
JournalIEEE Transactions on Industry Applications
Issue number3
Publication statusPublished - 1 May 2015
MoE publication typeA1 Journal article-refereed


  • arc-flash
  • non-intrusive sensors
  • on-site measurements
  • online condition monitoring
  • partial discharge (PD)
  • proactive techniques
  • switchgear

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