Title :
Magnetic nondestructive detection of cracks in a distribution line
Author :
Nonaka, Takashi ; Sato, Fumihiro ; Matsuki, Hidetoshi ; Sato, Tadakuni
Author_Institution :
Dept. of Electr. & Commun. Eng., Tohoku Univ., Sendai, Japan
fDate :
7/1/2001 12:00:00 AM
Abstract :
An important problem in the electric power industry is the degradation of distribution lines. We propose a nondestructive detection system for cracks in a distribution line by measuring the magnetic field around the distribution line when it is energized. In this paper, we examine the distribution of the magnetic field around a 50 Hz distribution line in a laboratory experiment. From our observations, we develop and refine an algorithm for detecting cracks by using the magnetic field direction
Keywords :
crack detection; magnetic field measurement; power distribution lines; 50 Hz; crack detection algorithm; electric power distribution line; magnetic field measurement; nondestructive testing; Conductors; Degradation; Density measurement; Energy measurement; Laboratories; Magnetic field measurement; Magnetic flux density; Magnetic sensors; Oxidation; Wire;
Journal_Title :
Magnetics, IEEE Transactions on
