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

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...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2015-05, Vol.51 (3), p.2615-2623
Main Authors: Hussain, G. Amjad, Shafiq, Muhammad, Kay, John A., Lehtonen, Matti
Format: Article
Language:English
Subjects:
arc-flash
Discharges (electric)
Frequency measurement
Laboratories
Noise
non-intrusive sensors
on-site measurements
online condition monitoring
partial discharge
Partial discharges
proactive techniques
Sensors
Switchgear
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Summary: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.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2014.2362958