Инновационные решения для измерения частичных разрядов
Аннотация
В статье рассмотрены системы, разработанные с использованием инновационного подхода к измерению частичных разрядов, их преимущества перед традиционными методами контроля кабельных линий и электротехнических изделий, а также принципы их работы. В основу конструкции систем положен специальный широкополосный датчик-антенна, позволяющий без вывода тестируемого оборудования из эксплуатации дистанционно регистрировать как импульсы частичных разрядов, так и фазу переменного тока, протекающего в объекте измерения. Благодаря беспроводной природе и компактным габаритам устройств, измерения частичных разрядов при помощи описанных систем стало возможно проводить в ранее недоступных для этого условиях, значительно расширяя возможности данного диагностического метода. Измерения частичных разрядов являются актуальным способом предиктивной диагностики кабельных систем и необходимы для перехода к обслуживанию по состоянию.
Литература
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5. Gulski E. Digital Analysis of Partial Discharges. – IEEE Transactions on Dielectrics and Electrical Insulation, 1995, vol. 2, No. 5, pp. 822–837.
6. Montanari G.C. Diagnostics of electrical systems: expectations and answers. – 2007 International Conference on Solid Dielectrics, Winchester, UK, 2007, DOI:10.1109/ICSD.2007.4290868.
7. Zhenquan S., et al. Measurements, diagnostics and monitoring of partial discharges on high-voltage equipment on-line and off-line. – 4th IEEE Conference on Industrial Electronics and Applications, 2009, pp. 1521–1526.
8. Moronis A.X., et al. Electronic phenomena in solid dielectrics under high electric fields. – Proceedings of the IEEE International Symposium on Industrial Electronics, 1995, vol. 2, pp. 919–923.
9. Lopez-Roldan J., Tang T., Gaskin M. Optimization of a sensor for onsite detection of partial discharges in power transformers by the UHF method. – IEEE Transactions on Dielectrics and Electrical Insulation, 2008, vol. 15, iss. 6, pp. 1634–1639.
10. Lopez-Roldan J., Tang T., Gaskin M. Design and testing of UHF sensors for partial discharge detection in transformers. – International Conference on Condition Monitoring and Diagnosis, 2008, pp. 1052–1055, DOI:10.1109/CMD.2008.4580463.
11. Petchphung P., et al. The study of disc monopole antenna for partial discharge measurement. – International Power Engineering Conference, 2007, pp. 1292–1296.
12. Pat. EP2297589 / WO2009150627. Portable Partial Discharge Detection Device / A. Di Stefano, et al., 2009.
13. Candela R., et al. A Novel Partial Discharge Detection System Based on Wireless Technology. – AEIT Annual Conference, 2013, DOI:10.1109/AEIT.2013.6666803.
14. Candela R., Di Stefano A., Valentini M. PD measurements with Pry-Cam Portable, 2014, 18 p.
15. IEC 62067. Power cables with extruded insulation and accessories for operating voltages above 150 kV (Um = 170 kV) up to 500 kV (Um = 550 kV) – Test methods and requirements, 2011-11.
16. IEC 60840. Power cables with extruded insulation and accessories for operating voltages above 30 kV (Um = 36 kV) up to 150 kV (Um = 170 kV) – Test methods and requirements, 2004-04.
17. Candela R., Di Stefano A., Valentini M. Pry-Cam Grids Partial Discharge Monitoring – general description, July 08, 2014, pp. 7–15.
18. Cost of Hourly Downtime Soars: 81% of Enterprises Say it Exceeds $300K оn Average [Electron. Resource], URL: https://itic-corp.com (Date of Appeal: 02.08.2021).
19. Maintaining Virtual System Uptime in Today's Transforming IT Infrastructure [Electron. Resource], URL: https://www.aberdeen.com (Date of Appeal: 02.08.2021).
20. The Impact of Digital on Unplanned Downtime [Electron. Resource], URL: https://www.ge.com (Date of Appeal: 02.08.2021).