Electroluminescent Sensing Coating for On-Line Detection of Zero-Value Insulators in High-Voltage Systems
In high-voltage transmission lines, insulators subjected to prolonged electromechanical stress are prone to zero-value defects, leading to insulation failure and posing significant risks to power grid reliability. The conventional detection method of spark gap is vulnerable to environmental interfer...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-07-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/15/14/7965 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1839616573698998272 |
|---|---|
| author | Yongjie Nie Yihang Jiang Pengju Wang Daoyuan Chen Yongsen Han Jialiang Song Yuanwei Zhu Shengtao Li |
| author_facet | Yongjie Nie Yihang Jiang Pengju Wang Daoyuan Chen Yongsen Han Jialiang Song Yuanwei Zhu Shengtao Li |
| author_sort | Yongjie Nie |
| collection | DOAJ |
| description | In high-voltage transmission lines, insulators subjected to prolonged electromechanical stress are prone to zero-value defects, leading to insulation failure and posing significant risks to power grid reliability. The conventional detection method of spark gap is vulnerable to environmental interference, while the emerging electric field distribution-based techniques require complex instrumentation, limiting its applications in scenes of complex structures and atop tower climbing. To address these challenges, this study proposes an electroluminescent sensing strategy for zero-value insulator identification based on the electroluminescence of ZnS:Cu. Based on the stimulation of electrical stress, real-time monitoring of the health status of insulators was achieved by applying the composite of epoxy and ZnS:Cu onto the connection area between the insulator steel cap and the shed. Experimental results demonstrate that healthy insulators exhibit characteristic luminescence, whereas zero-value insulators show no luminescence due to a reduced drop in electrical potential. Compared with conventional detection methods requiring access of electric signals, such non-contact optical detection method offers high fault-recognition accuracy and real-time response capability within milliseconds. This work establishes a novel intelligent sensing paradigm for visualized condition monitoring of electrical equipment, demonstrating significant potential for fault diagnosis in advanced power systems. |
| format | Article |
| id | doaj-art-4b69e6510bc24bb48741c1da9ca95c1c |
| institution | Matheson Library |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-4b69e6510bc24bb48741c1da9ca95c1c2025-07-25T13:12:51ZengMDPI AGApplied Sciences2076-34172025-07-011514796510.3390/app15147965Electroluminescent Sensing Coating for On-Line Detection of Zero-Value Insulators in High-Voltage SystemsYongjie Nie0Yihang Jiang1Pengju Wang2Daoyuan Chen3Yongsen Han4Jialiang Song5Yuanwei Zhu6Shengtao Li7Electric Power Research Institute, Yunnan Power Gird Co., Ltd., Kunming 650217, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaElectric Power Research Institute, Yunnan Power Gird Co., Ltd., Kunming 650217, ChinaKey Laboratory of Engineering Dielectrics and Its Application, Harbin University of Science and Technology, Ministry of Education, Harbin 150080, ChinaKey Laboratory of Engineering Dielectrics and Its Application, Harbin University of Science and Technology, Ministry of Education, Harbin 150080, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaIn high-voltage transmission lines, insulators subjected to prolonged electromechanical stress are prone to zero-value defects, leading to insulation failure and posing significant risks to power grid reliability. The conventional detection method of spark gap is vulnerable to environmental interference, while the emerging electric field distribution-based techniques require complex instrumentation, limiting its applications in scenes of complex structures and atop tower climbing. To address these challenges, this study proposes an electroluminescent sensing strategy for zero-value insulator identification based on the electroluminescence of ZnS:Cu. Based on the stimulation of electrical stress, real-time monitoring of the health status of insulators was achieved by applying the composite of epoxy and ZnS:Cu onto the connection area between the insulator steel cap and the shed. Experimental results demonstrate that healthy insulators exhibit characteristic luminescence, whereas zero-value insulators show no luminescence due to a reduced drop in electrical potential. Compared with conventional detection methods requiring access of electric signals, such non-contact optical detection method offers high fault-recognition accuracy and real-time response capability within milliseconds. This work establishes a novel intelligent sensing paradigm for visualized condition monitoring of electrical equipment, demonstrating significant potential for fault diagnosis in advanced power systems.https://www.mdpi.com/2076-3417/15/14/7965electroluminescencehigh-voltagezero-value insulatoron-line monitoring |
| spellingShingle | Yongjie Nie Yihang Jiang Pengju Wang Daoyuan Chen Yongsen Han Jialiang Song Yuanwei Zhu Shengtao Li Electroluminescent Sensing Coating for On-Line Detection of Zero-Value Insulators in High-Voltage Systems Applied Sciences electroluminescence high-voltage zero-value insulator on-line monitoring |
| title | Electroluminescent Sensing Coating for On-Line Detection of Zero-Value Insulators in High-Voltage Systems |
| title_full | Electroluminescent Sensing Coating for On-Line Detection of Zero-Value Insulators in High-Voltage Systems |
| title_fullStr | Electroluminescent Sensing Coating for On-Line Detection of Zero-Value Insulators in High-Voltage Systems |
| title_full_unstemmed | Electroluminescent Sensing Coating for On-Line Detection of Zero-Value Insulators in High-Voltage Systems |
| title_short | Electroluminescent Sensing Coating for On-Line Detection of Zero-Value Insulators in High-Voltage Systems |
| title_sort | electroluminescent sensing coating for on line detection of zero value insulators in high voltage systems |
| topic | electroluminescence high-voltage zero-value insulator on-line monitoring |
| url | https://www.mdpi.com/2076-3417/15/14/7965 |
| work_keys_str_mv | AT yongjienie electroluminescentsensingcoatingforonlinedetectionofzerovalueinsulatorsinhighvoltagesystems AT yihangjiang electroluminescentsensingcoatingforonlinedetectionofzerovalueinsulatorsinhighvoltagesystems AT pengjuwang electroluminescentsensingcoatingforonlinedetectionofzerovalueinsulatorsinhighvoltagesystems AT daoyuanchen electroluminescentsensingcoatingforonlinedetectionofzerovalueinsulatorsinhighvoltagesystems AT yongsenhan electroluminescentsensingcoatingforonlinedetectionofzerovalueinsulatorsinhighvoltagesystems AT jialiangsong electroluminescentsensingcoatingforonlinedetectionofzerovalueinsulatorsinhighvoltagesystems AT yuanweizhu electroluminescentsensingcoatingforonlinedetectionofzerovalueinsulatorsinhighvoltagesystems AT shengtaoli electroluminescentsensingcoatingforonlinedetectionofzerovalueinsulatorsinhighvoltagesystems |