제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
권호 표지

Development of a Monitoring Equipment of Current and Potential on Power Transmission Line for 66kV

  • Nisiyama, Eiji (Department of Information and Communication Engineering, Kumamoto National College of Technology) ;
  • Kuwanami, Kenshi (Department of Information and Communication Engineering, Kumamoto National College of Technology) ;
  • Kawano, Mitsunori (Department of Information and Communication Engineering, Kumamoto National College of Technology) ;
  • Matsuda, Toyonori (Department of Information and Communication Engineering, Kumamoto National College of Technology) ;
  • Oota, I. (Department of Information and Communication Engineering, Kumamoto National College of Technology)
  • Published : 2003.10.22
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Abstract

We propose portable equipment that monitors current and voltage of high-potential power transmission lines. In the equipment, a current and voltage sensor are attached to an insulator that supports a power transmission line: A clamped to the power line and the detected current signal is transmitted to the ground station by a wireless optical link using transmission line is detected by a high resistance element, zinc oxide (ZnO). That acts as a potential divider between the power line and ground. We make an experimental device for 66kV power line and demonstrate that it can monitor currents proposed equipment is small-sized, light, and inexpensive in comparison with the conventional CT (current transformer) and PT (potential transformer) since it does not require high potential insulators and magnetic cores, further, the equipment is easily installed owing to its small size and its simple structure.

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