Abstract
SQUID-NDE technique was applied to detection of wire breakage in aluminium transmission line, and aluminium clamp composed of compressed conductor joint. Hard aluminium transmission lines twisted from 19 aluminium wires with or without a wire breakage were prepared. While applying ac current of 2.6 mA at 200 Hz to the line, distributions of magnetic field gradient above the transmission lines were measured by a SQUID-NDE system using a HTS SQUID gradiometer. A periodic pattern was detected along the locus of broken wire in the distribution of the field gradient generated from the line with wire breakage, while such pattern was not observed in the normal line without wire breakage. Numerical simulation of distribution of field gradient from the aluminium transmission line was also carried out to compare it with the experimental results.
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.
