Abstract
Power cables should be operated at an adequate temperature level. Therefore, numerous power utilities have installed optical distributed temperature sensing (DTS) systems to measure the temperature of underground cables. Protection and metering systems used in power systems require measurements of the current flowing in the high-power conductors as well. Optical current sensors achieve increasing attention and acceptance for this application due to their inherent electrical insulation, high bandwidth, and immunity to EMI. DTS systems are based on spontaneous Raman scattering or Brillouin scattering, which use spectral information in the reflected light, whereas optical current sensors are based on the Faraday effect, which changes the intensity of transmitted light. This paper proposes a novel design of a combined optical temperature and current measurement system, using both physical effects. A first measurement setup is described, and first results are discussed. Thereby, the specifications for the combined data acquisition and data processing unit are analyzed in order to optimize the accuracy and the reliability of each subsystem and the whole system.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
