Title : 
The search system for cracks in the distribution line using magnetic field
         
        
            Author : 
Yamaguchi, Hideyuki ; Nonaka, Takarshi ; Sato, Fumihiro ; Matsuki, Hidetoshi ; Sato, Tadakuni
         
        
            Author_Institution : 
Graduate Sch., Tohoku Univ., Sendai, Japan
         
        
        
        
        
        
            Abstract : 
The distribution line to send the electricity to its users is the enormous facility and it is exposed to the severe natural environment. Therefore, cracks may arise in the distribution line.´ However, it is impossible to discover the cracks by visual observation because of the insulator and the protective covering. Grasping the degradation situation of the distribution line is one of the important problems. This paper presents a proposed method for detecting the cracks non-destructively by measuring the magnetic field around the distribution line.
         
        
            Keywords : 
crack detection; insulators; magnetic field measurement; power distribution lines; cracks; distribution line; insulator; magnetic field measurement; nondestructive detection; protective covering; search system; visual observation; Current density; Degradation; Educational institutions; Insulation; Magnetic field measurement; Magnetic fields; Magnetic sensors; Protection; Scattering;
         
        
        
        
            Conference_Titel : 
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
         
        
            Print_ISBN : 
0-7803-9009-1
         
        
        
            DOI : 
10.1109/INTMAG.2005.1463647