Use of DSLR and Sonic Cameras to Detect and Locate High-Voltage Corona Discharges
Corona discharges are a concern in high-voltage applications. It is of utmost importance to detect and locate the discharges at an early stage using simple methods for this purpose. This paper evaluates and compares the sensitivity of two methods for detecting and locating the source of discharges,...
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/19/7250 |
| _version_ | 1797476936030617600 |
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| author | Jordi-Roger Riba Pau Bas-Calopa |
| author_facet | Jordi-Roger Riba Pau Bas-Calopa |
| author_sort | Jordi-Roger Riba |
| collection | DOAJ |
| description | Corona discharges are a concern in high-voltage applications. It is of utmost importance to detect and locate the discharges at an early stage using simple methods for this purpose. This paper evaluates and compares the sensitivity of two methods for detecting and locating the source of discharges, which are based on a digital single-lens reflex (DSLR) camera and a portable wideband sonic camera incorporating a matrix of micro-electromechanical systems (MEMS) microphones. Both cameras can generate an image of the studied area where the discharge sites are identified. The study is carried out with different electrode geometries, 50 Hz alternating current (ac) and positive and negative direct current (dc) supplies, and the effect of the distance between the sensor and the discharge sites is also analyzed. The presented results show that the sonic camera enables fast, simple, and sensitive detection and localization of the source of corona discharges even at a very early stage in daylight conditions, regardless of the type of power supply, that is, ac or positive/negative dc, and at distance of several meters from the discharge source. |
| first_indexed | 2024-03-09T21:10:50Z |
| format | Article |
| id | doaj.art-243a7fdeadbd47cf938ffb75210a48c7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T21:10:50Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-243a7fdeadbd47cf938ffb75210a48c72023-11-23T21:46:01ZengMDPI AGSensors1424-82202022-09-012219725010.3390/s22197250Use of DSLR and Sonic Cameras to Detect and Locate High-Voltage Corona DischargesJordi-Roger Riba0Pau Bas-Calopa1Electrical Engineering Department, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrassa, SpainElectrical Engineering Department, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrassa, SpainCorona discharges are a concern in high-voltage applications. It is of utmost importance to detect and locate the discharges at an early stage using simple methods for this purpose. This paper evaluates and compares the sensitivity of two methods for detecting and locating the source of discharges, which are based on a digital single-lens reflex (DSLR) camera and a portable wideband sonic camera incorporating a matrix of micro-electromechanical systems (MEMS) microphones. Both cameras can generate an image of the studied area where the discharge sites are identified. The study is carried out with different electrode geometries, 50 Hz alternating current (ac) and positive and negative direct current (dc) supplies, and the effect of the distance between the sensor and the discharge sites is also analyzed. The presented results show that the sonic camera enables fast, simple, and sensitive detection and localization of the source of corona discharges even at a very early stage in daylight conditions, regardless of the type of power supply, that is, ac or positive/negative dc, and at distance of several meters from the discharge source.https://www.mdpi.com/1424-8220/22/19/7250partial dischargescorona dischargeshigh-voltageoptic methodsacoustic methods |
| spellingShingle | Jordi-Roger Riba Pau Bas-Calopa Use of DSLR and Sonic Cameras to Detect and Locate High-Voltage Corona Discharges Sensors partial discharges corona discharges high-voltage optic methods acoustic methods |
| title | Use of DSLR and Sonic Cameras to Detect and Locate High-Voltage Corona Discharges |
| title_full | Use of DSLR and Sonic Cameras to Detect and Locate High-Voltage Corona Discharges |
| title_fullStr | Use of DSLR and Sonic Cameras to Detect and Locate High-Voltage Corona Discharges |
| title_full_unstemmed | Use of DSLR and Sonic Cameras to Detect and Locate High-Voltage Corona Discharges |
| title_short | Use of DSLR and Sonic Cameras to Detect and Locate High-Voltage Corona Discharges |
| title_sort | use of dslr and sonic cameras to detect and locate high voltage corona discharges |
| topic | partial discharges corona discharges high-voltage optic methods acoustic methods |
| url | https://www.mdpi.com/1424-8220/22/19/7250 |
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