Study of isolated contact temperature monitoring system based on optical wireless sensing technology

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• 作者：Weibing Gan (1)
  Youfa Wang (2)
  
• 关键词：Fiber grating ; temperature sensor ; composite insulator ; high ; voltage switchgear ; isolated contact
• 刊名：Photonic Sensors
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：4
• 期：2
• 页码：108-112
• 全文大小：503 KB
• 参考文献：1. B. Shi, “HV switchgear temperature on-line monitoring system with distributed optical fiber sensor,- / High Voltage Engineering, 2007, 33(8): 169-73.
  2. B. Wang and J. Li, “Real-time temperature measurement system of high voltage switchgear by RF wireless technical,- / Zhejiang Electric Power, 2009, 3: 31-3.
  3. M. Xu and X. YANG, “Wireless monitoring system of temperature for the high voltage switch contact,- / Measurement Control Technology and Instruments, 2009, 4: 98-01.
  4. X. Qian and X. Wang, “FBG based sensing system for temperature monitoring of the high voltage apparatus,- / Proc. of the CSU-EPSA, 2007, 19(5): 49-1.
  5. X. Sun, “Design of switchgear temperature on-line monitoring system based on optical fiber grating,- / Telecommunications for Electric Power System, 2012, 33(235): 6-0.
  
• 作者单位：Weibing Gan (1)
  Youfa Wang (2)
  
  1. National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan, 430070, China
  2. Hubei Airport Group, Wuhan, 430070, China
  
• ISSN：2190-7439

文摘

In view of the high voltage, the strong magnetic field environment of the high-voltage switchgear, the system based on the optical wireless sensing technology, realizes the isolated contact temperature monitoring of the high-voltage switchgear. In this scheme, the good thermal conductivity and insulation ceramic materials were selected as the outer jacket material sensing probe, and the program had a good solution to the problem of high and low voltage isolation; The combination of the optical fiber composite insulators for wireless sensing, not only solves the problem of high voltage insulation, but also avoids the “creeping-phenomenon due to dust. The package of the structure and reasonable installation solves the cross sensitivity of strain. The application showed that the precision of temperature measurement of the system could reach ± 0.5 °C and could work in a variety of harsh environments. It could improve the reliability of the operation of the electrical equipment significantly and has considerable practical value for the whole power system.