دورية أكاديمية
Applicability of the acoustic–electrical joint detection method to identify defects in gas insulated system
| العنوان: | Applicability of the acoustic–electrical joint detection method to identify defects in gas insulated system |
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| المؤلفون: | Jixing Sun, Yongzhi Fan, Weifan Qiu, Sibo Song, Xinyu Tan, Yu Tian, Xuewen Jiao, Huili Wang, Nana Wu |
| المصدر: | IET Science, Measurement & Technology, Vol 17, Iss 4, Pp 147-157 (2023) |
| بيانات النشر: | Wiley, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Electrical engineering. Electronics. Nuclear engineering |
| مصطلحات موضوعية: | electromagnetic fields, fault diagnosis, gas insulated substations, gas insulated transmission lines, pattern recognition, partial discharge measurement, Electrical engineering. Electronics. Nuclear engineering, TK1-9971 |
| الوصف: | Abstract There are many defects in gas‐insulated metal‐enclosed switchgear (GIS) and gas‐insulated transmission lines (GIL) that may cause accidents, such as floating potentials, metal particles, air gaps, and cracks in support insulators. Nevertheless, to‐this‐date, there is no effective method to recognize them to adjust their operation status. Accordingly, this study compared three typical defect models to explore the partial discharge process, and three typical experimental models were established to identify the characteristic parameters of acoustic and electrical information in the development of defects. The research study shows that that as the voltage increases, the partial discharge of free‐metal‐particle defects and air‐gap defects obtained by the pulse‐current method increase gradually. A sudden increase also occurred in the partial discharge of the floating potential defect. The discharge amount of free conductive particles obtained by an ultrahigh‐frequency detection method was distributed symmetrically on both sides of the applied voltage peak, and the other two defects were on one side of the peak and yielded an obvious phase difference. The particle collision signal obtained by the ultrasonic method was obvious, but had no obvious phase relationship with the applied voltage. However, the obtained floating potential defect information had obvious phase differences, and the ultrasonic method was not sensitive to air‐gap defects. The three typical defects can be identified by the combined method more accurately; this provides a theoretical basis and data support for GIS and GIS voltage tests, detection technologies, and online monitoring methods. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1751-8830 1751-8822 |
| Relation: | https://doaj.org/toc/1751-8822; https://doaj.org/toc/1751-8830 |
| DOI: | 10.1049/smt2.12138 |
| URL الوصول: | https://doaj.org/article/337c05ce99384a6a97d0f2ba9e18b666 |
| رقم الأكسشن: | edsdoj.337c05ce99384a6a97d0f2ba9e18b666 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17518830 17518822 |
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| DOI: | 10.1049/smt2.12138 |