Magnetic nondestructive detection of distribution-line deterioration

Author

Nonaka, Takashi ; Yoshimi, Hideyuki ; Sato, Fumihiro ; Matsuki, Hidetoshi ; Sato, Tadakuni

Author_Institution

Dept. of Electr. & Commun. Eng., Tohoku Univ., Sendai, Japan

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

3321

Lastpage

3323

Abstract

A major problem in the electric power industry is distribution-line degradation. Nondestructive detection of cracks in a distribution line may be possible through eddy-current testing or measurement of the magnetic field around the distribution line when it is energized. We have examined each of these methods, eddy-current testing and distribution of the magnetic field around a conducting wire and around a distribution line, through laboratory experiments. Our results indicate that both methods provide an effective means of detecting distribution-line deterioration.

Keywords

crack detection; eddy current testing; magnetic field measurement; power distribution lines; power system measurement; conducting wire; distribution-line deterioration; eddy-current testing; electric power industry; laboratory experiments; magnetic field measurement; magnetic nondestructive detection; nondestructive crack detection; Coils; Conductors; Degradation; Eddy currents; Magnetic field measurement; Magnetic sensors; Nondestructive testing; Phase detection; Voltage; Wire;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802303

Filename

1042538