A distributed optical fiber sensor for temperature detection in power cables


Yilmaz G., Karlik S. E.

SENSORS AND ACTUATORS A-PHYSICAL, vol.125, no.2, pp.148-155, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 125 Issue: 2
  • Publication Date: 2006
  • Doi Number: 10.1016/j.sna.2005.06.024
  • Title of Journal : SENSORS AND ACTUATORS A-PHYSICAL
  • Page Numbers: pp.148-155
  • Keywords: Raman sensor, power cable, distributed temperature sensing, OTDR, fiber

Abstract

The power transfer capacity of an underground power cable is limited by high-temperature regions that occur along the cable. It is very difficult to determine and control these 'hot spots'. Optimum use and temperature profile control of power cables before and during load transmission can be achieved with real-time processing of temperature data. There are various methods developed for this purpose such as conventional point temperature measurement method, where a large number of sensors and connectors are required, and methods based on mathematical models which can only approach real values by approximation.