NDLI: Detecting partial discharge of polluted insulators based on ultraviolet imaging

Content Provider	IEEE Xplore Digital Library
Author	Jianyong Ai Lijun Jin Yingyao Zhang Zhiren Tian Chenyi Peng Wei Duan
Copyright Year	2015
Description	Author affiliation: Sch. of Electron. & Inf. Eng., Tongji Univ., Shanghai, China (Jianyong Ai; Lijun Jin; Yingyao Zhang; Zhiren Tian; Chenyi Peng) \|\| Repair Station for Shanghai High-speed Rail, Shanghai Railway Bur., Shanghai, China (Wei Duan)
Abstract	Insulator is one of the most commonly used devices in transmission lines, so that the reliability of insulators is of great importance to the stable and safe operation of the electric grid. This paper analyzed the filthy discharge of polluted insulators based on ultraviolet (UV) imaging detection technology. By establishing an equivalent circuit model of polluted insulators, this paper analyzed and processed the causes and influencing factors of filthy discharge. Insulators were polluted artificially and discharged in the artificial climate chamber. The images and videos of this process were recorded and processed, based on which a characteristic of these images has been extracted and defined as “facula area percentage”. By analyzing and comparing the images' characteristics of discharges under different pollution level and different relative humidity, this paper acquired the patterns of how insulator discharges are influenced by pollution and humidity. By analyzing the influencing factors, such as gains, shot angles and distances, to the characteristics of those UV images, this paper also worked out the conversion formula under different gains, shot angles and distances, and proposed a standard for UV imaging.
Starting Page	456
Ending Page	459
File Size	1383808
Page Count	4
File Format	PDF
ISSN	21609241
e-ISBN	9781479989034
DOI	10.1109/ICPADM.2015.7295307
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-19
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Discharges (electric) Insulators Conductivity Humidity Imaging Integrated circuit modeling Pollution UV imager shooting standard Ultraviolet (UV) imaging filthy discharge image processing
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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