Experience with the detection of faulty composite insulators on high-voltage power lines by the electric field measurement method

Vaillancourt, G.H.; Carignan, S.; Jean, Charles

doi:10.1109/61.660958

Cited by 86 publications

(42 citation statements)

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“…• by observing the deflection of a phosphor bronze wire probe [25]; • electro-optic space potential probes [26]; • capacitive space potential probes [27]. The measurement of E-field distribution has some limitations including:…”

Section: B Measurementmentioning

confidence: 99%

Electric Fields on AC Composite Transmission Line Insulators

Phillips

Kuffel

Baker

et al. 2008

IEEE Trans. Power Delivery

142

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This paper provides an overview of the electric field (E-field) distribution on transmission line composite insulators applied in alternating current applications. Factors that affect the E-field distribution are discussed as well as the influence of the E-field distribution on the short and long term performance. Modeling and measurement methods are reported and examples of calculated E-field magnitudes determined are presented together with corona ring application information. This paper was developed by the IEEE Task Force on Electric Fields and Composite Insulators.

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Section: B Measurementmentioning

confidence: 99%

Electric Fields on AC Composite Transmission Line Insulators

Phillips

Kuffel

Baker

et al. 2008

IEEE Trans. Power Delivery

142

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“…This means that is necessary to modify the standard continuous 5000 h salt fog test to determine the long-term performance of polymeric insulators. In 2003, the IIE applied visual corona and electrical field techniques to check out the operational state of the polymeric insulators installed on 230 and 400 kV Mexican transmission lines [15][16][17][18]. These techniques were applied live using the following equipment: DayCor II Corona Camera for visual corona and Polymeric Insulator Tester for electrical field [18].…”

Section: Studies Carried Out In Mexicomentioning

confidence: 99%

Experiences on pollution level measurement in Mexico

Montoya-Tena

Hernández-Corona

Ramírez-Vázquez

2005

Electric Power Systems Research

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“…However it not only request manipulators to observe insulators closely, but also need them to familiarize with various types of insulators' material, design and the frequent failure modes. The effectiveness of the electric field detection method has been verified through experiments mentioned by the literature [2] . Meanwhile, it was found that the detection precision is related to the fault location and whether the insulator is inundated will also affect the results.…”

Section: Introductionmentioning

confidence: 99%

Research of Measurement on Insulator's Contact Angles Based on Image Processing

Tao

Wang

et al. 2008

2008 First International Conference on Intelligent Networks and Intelligent Systems

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The contamination flashover resistant performance of an insulator is due to the hydrophobicity on its surface. So measuring the hydrophobicity of insulators is an important way to evaluate their performance.This research proposes a method to auto-detect insulator's contact angles with image processing and curve fitting. According to the characteristic of water drop on insulator's surface, the median filter and the gray stretch are adopted to preprocess the water drop image. The edge detection algorithm with the Robert operator and the iterative arithmetic on optimized threshold for region partition are deployed to implement image segmentation. The proposed method combines iterative arithmetic for sketch extraction and the neighborhood arithmetic for outline tracking to find the corresponding water drop contour. Then, the polynomial fitting is deployed to fit the discrete points on the drop contour and the contact angles can be calculated by derivation from the polynomial deduced from the polynomial fitting. Experiments show that the method is feasible for detecting the accurate contact angles and the root mean square error is below 2％.

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Experience with the detection of faulty composite insulators on high-voltage power lines by the electric field measurement method

Cited by 86 publications

References 1 publication

Electric Fields on AC Composite Transmission Line Insulators

Electric Fields on AC Composite Transmission Line Insulators

Experiences on pollution level measurement in Mexico

Research of Measurement on Insulator's Contact Angles Based on Image Processing

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