Status quo and aspects to consider with ultraviolet optical versus high voltage energy relation investigations

Coetzer, Casper; Djeumen, Jules Simplice; Becker, T.; West, Nicholas J.; Walker, J. J.; Leuschner, F.W.

doi:10.1117/12.2501251

Cited by 8 publications

(16 citation statements)

References 8 publications

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“…Most dual-band cameras use a solar-blind UVC filter combined with an image-intensified CCD (ICCD) [ 114 ] or an intensified CMOS (ICMOS) [ 94 , 106 , 117 , 119 ], as illustrated in Figure 7 .…”

Section: Ultraviolet (Uv) and Visible Imaging Applied To Corona Disch...mentioning

confidence: 99%

Application of Image Sensors to Detect and Locate Electrical Discharges: A Review

Ruiz

2022

Sensors

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Today, there are many attempts to introduce the Internet of Things (IoT) in high-voltage systems, where partial discharges are a focus of concern since they degrade the insulation. The idea is to detect such discharges at a very early stage so that corrective actions can be taken before major damage is produced. Electronic image sensors are traditionally based on charge-coupled devices (CCDs) and, next, on complementary metal oxide semiconductor (CMOS) devices. This paper performs a review and analysis of state-of-the-art image sensors for detecting, locating, and quantifying partial discharges in insulation systems and, in particular, corona discharges since it is an area with an important potential for expansion due to the important consequences of discharges and the complexity of their detection. The paper also discusses the recent progress, as well as the research needs and the challenges to be faced, in applying image sensors in this area. Although many of the cited research works focused on high-voltage applications, partial discharges can also occur in medium- and low-voltage applications. Thus, the potential applications that could potentially benefit from the introduction of image sensors to detect electrical discharges include power substations, buried power cables, overhead power lines, and automotive applications, among others.

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Section: Ultraviolet (Uv) and Visible Imaging Applied To Corona Disch...mentioning

confidence: 99%

Application of Image Sensors to Detect and Locate Electrical Discharges: A Review

Ruiz

2022

Sensors

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“…Solar-blind ultraviolet (SBUV) cameras and instruments using image intensifier technology are part of the preventive maintenance (detection) of high voltage transmission components [1,2]. The most popular type of camera technology uses an image intensifier coupled detector with a CMOS detector (ICMOS) configuration [3,4]. The number of experiments with different types of multiple and single detectors has implied that there is a relation between electrical corona loss and optical energy observed [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…The most popular type of camera technology uses an image intensifier coupled detector with a CMOS detector (ICMOS) configuration [3,4]. The number of experiments with different types of multiple and single detectors has implied that there is a relation between electrical corona loss and optical energy observed [4][5][6][7]. Unfortunately, most of the commercial SBUV ICMOS cameras are only used to provide an image without providing any indication of severity by measurements of the optical intensity [4].…”

Section: Introductionmentioning

confidence: 99%

“…The number of experiments with different types of multiple and single detectors has implied that there is a relation between electrical corona loss and optical energy observed [4][5][6][7]. Unfortunately, most of the commercial SBUV ICMOS cameras are only used to provide an image without providing any indication of severity by measurements of the optical intensity [4]. The reason for this is a tendency for the commercial and research cases to use image processing techniques instead of radiometric relations to determine optical energy [4,5].…”

Section: Introductionmentioning

confidence: 99%

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Opto-Electronics Review

Coetzer,

West

2021

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Solar-blind ultraviolet cameras with image intensifier with CMOS detector typically use various count methodologies to measure the optical energy of an electrical corona. However, these count methodologies are non-radiometric without considering parameters such as distance, focus-, zoom-, and gain setting of a camera. An algorithm which considers the calibration and radiometric measurement of optical energy for the slow frame rate intensifier type cameras is presented. Furthermore, it is shown how these calibration data together with the flowcharts are used for the conversion from raw measured data to radiometric energy values.

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“…However, despite its obvious importance, this parameter is not presented in data sheets of typical SBUV cameras [1][2][3][4][5][6]. More importantly, the available scientific papers devoted to the characteristics of SBUV cameras did not present any concept on how to measure this parameter [7][8][9][10][11]. In such a situation this paper presents the concept (definition, measurement method, test equipment, interpretation of results) of measuring solar sensitivity of SBUV cameras.…”

Section: Introductionmentioning

confidence: 99%

Opto-Electronics Review

Chrzanowski,

Safiej

2020

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Solar blind UV cameras are not theoretically supposed to be sensitive to solar light. However, there is practically always some sensitivity to solar light. This limited solar sensitivity can sometimes make it impossible to detect the weak emission of a corona target located on the solar background. Therefore, solar sensitivity is one of the crucial performance parameters of solar blind UV cameras. However, despite its importance, the problem of determining solar sensitivity of solar blind UV cameras has not been analysed and solved in the specialized literature, so far. This paper presents the concept (definition, measurement method, test equipment, interpretation of results) of measuring solar sensitivity of solar blind UV cameras.

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Status quo and aspects to consider with ultraviolet optical versus high voltage energy relation investigations

Cited by 8 publications

References 8 publications

Application of Image Sensors to Detect and Locate Electrical Discharges: A Review

Application of Image Sensors to Detect and Locate Electrical Discharges: A Review

Opto-Electronics Review

Opto-Electronics Review

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