• DocumentCode
    3676608
  • Title

    Non-contact surface wave sensing of wire fault precursors

  • Author

    Md Nazmul Alam;David Coats;Roger Dougal;Mohammod Ali;Yong-June Shin

  • Author_Institution
    Department of Electrical Engineering, University of South Carolina, Columbia, USA
  • fYear
    2015
  • fDate
    7/1/2015 12:00:00 AM
  • Firstpage
    1180
  • Lastpage
    1181
  • Abstract
    A non-contact surface wave method of aging related insulation damage (fault precursors) detection in cables is proposed. Aging related hot spot detection is examined to demonstrate the efficacy of this method on an unshielded cable. A non-contact surface wave launcher launches a Gaussian chirp signal (120 MHz center frequency and 100 MHz bandwidth) onto the surface of a 22.9 ft. long power cable. The propagating wave is reflected from the location of the aging hot spot as well as from the open end. The time frequency cross-correlation clearly identifies the location of the aging hot spot.
  • Keywords
    "Power cables","Surface waves","Cable insulation","Accelerated aging","Surface impedance"
  • Publisher
    ieee
  • Conference_Titel
    Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015 IEEE International Symposium on
  • Type

    conf

  • DOI
    10.1109/APS.2015.7304978
  • Filename
    7304978
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3676608