Study on the Measurement Technique and Judgment Procedure of Ultrasonic Corona Imaging Equipment
Corona discharge is a phenomenon wherein gas on the surface of electrical equipment is ionised. Severe ionisation can lead to insulation breakdown and cause equipment damage. Consequently, non-contact portable devices are employed to detect corona discharge in real time while the electrical equipmen...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/14/5529 |
| _version_ | 1797589471214960640 |
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| author | Ja-Yoon Kang Dong-Ju Chae Young-Chae Mun Ji-Man Park Bang-Wook Lee |
| author_facet | Ja-Yoon Kang Dong-Ju Chae Young-Chae Mun Ji-Man Park Bang-Wook Lee |
| author_sort | Ja-Yoon Kang |
| collection | DOAJ |
| description | Corona discharge is a phenomenon wherein gas on the surface of electrical equipment is ionised. Severe ionisation can lead to insulation breakdown and cause equipment damage. Consequently, non-contact portable devices are employed to detect corona discharge in real time while the electrical equipment is pressurised. Recently, several devices capable of visualising corona discharge phenomena occurring in the ultrasonic region have been developed. However, these devices are primarily used for scanning purposes to verify the occurrence of partial discharge, as detailed guidelines for operating the equipment in real-world field conditions are yet to be established. Therefore, this study proposes a measurement technique for utilising ultrasonic corona imaging diagnostic equipment in the field. This technique involves the use of corona discharge electrodes and aged epoxy insulator samples. First, the performance of the ultrasonic corona imaging diagnostic equipment based on environmental conditions was evaluated by varying the distance, frequency, temperature, and humidity using the corona discharge electrodes. Then, parallel measurements were conducted with a high-frequency current transformer sensor on epoxy insulator samples subjected to simple ageing, cracking, and partial surface damage, and the results were analysed. Finally, an efficient measurement technique, including equipment operation procedures, was proposed by integrating the measurement results. |
| first_indexed | 2024-03-11T01:07:09Z |
| format | Article |
| id | doaj.art-de622c31423a433c80942796baffe752 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T01:07:09Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-de622c31423a433c80942796baffe7522023-11-18T19:11:44ZengMDPI AGEnergies1996-10732023-07-011614552910.3390/en16145529Study on the Measurement Technique and Judgment Procedure of Ultrasonic Corona Imaging EquipmentJa-Yoon Kang0Dong-Ju Chae1Young-Chae Mun2Ji-Man Park3Bang-Wook Lee4Department of Mechatronics Engineering, Hanyang University, Ansan 15588, Republic of KoreaElectrical Safety Research Institute, Korea Electrical Safety Corporation, Wanju 55365, Republic of KoreaElectrical Safety Research Institute, Korea Electrical Safety Corporation, Wanju 55365, Republic of KoreaElectrical Safety Research Institute, Korea Electrical Safety Corporation, Wanju 55365, Republic of KoreaDepartment of Electronic Engineering, Hanyang University, Ansan 15588, Republic of KoreaCorona discharge is a phenomenon wherein gas on the surface of electrical equipment is ionised. Severe ionisation can lead to insulation breakdown and cause equipment damage. Consequently, non-contact portable devices are employed to detect corona discharge in real time while the electrical equipment is pressurised. Recently, several devices capable of visualising corona discharge phenomena occurring in the ultrasonic region have been developed. However, these devices are primarily used for scanning purposes to verify the occurrence of partial discharge, as detailed guidelines for operating the equipment in real-world field conditions are yet to be established. Therefore, this study proposes a measurement technique for utilising ultrasonic corona imaging diagnostic equipment in the field. This technique involves the use of corona discharge electrodes and aged epoxy insulator samples. First, the performance of the ultrasonic corona imaging diagnostic equipment based on environmental conditions was evaluated by varying the distance, frequency, temperature, and humidity using the corona discharge electrodes. Then, parallel measurements were conducted with a high-frequency current transformer sensor on epoxy insulator samples subjected to simple ageing, cracking, and partial surface damage, and the results were analysed. Finally, an efficient measurement technique, including equipment operation procedures, was proposed by integrating the measurement results.https://www.mdpi.com/1996-1073/16/14/5529corona dischargeepoxy insulatorultrasonic corona imaging diagnostic equipmenthigh-frequency current transformer sensor |
| spellingShingle | Ja-Yoon Kang Dong-Ju Chae Young-Chae Mun Ji-Man Park Bang-Wook Lee Study on the Measurement Technique and Judgment Procedure of Ultrasonic Corona Imaging Equipment Energies corona discharge epoxy insulator ultrasonic corona imaging diagnostic equipment high-frequency current transformer sensor |
| title | Study on the Measurement Technique and Judgment Procedure of Ultrasonic Corona Imaging Equipment |
| title_full | Study on the Measurement Technique and Judgment Procedure of Ultrasonic Corona Imaging Equipment |
| title_fullStr | Study on the Measurement Technique and Judgment Procedure of Ultrasonic Corona Imaging Equipment |
| title_full_unstemmed | Study on the Measurement Technique and Judgment Procedure of Ultrasonic Corona Imaging Equipment |
| title_short | Study on the Measurement Technique and Judgment Procedure of Ultrasonic Corona Imaging Equipment |
| title_sort | study on the measurement technique and judgment procedure of ultrasonic corona imaging equipment |
| topic | corona discharge epoxy insulator ultrasonic corona imaging diagnostic equipment high-frequency current transformer sensor |
| url | https://www.mdpi.com/1996-1073/16/14/5529 |
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