Title : 
Experimental results for a two-material passive DI/DT limiter
         
        
            Author : 
Dawson, F.P. ; Yamada, S. ; Iwahara, M.
         
        
            Author_Institution : 
Dept. of Electr. Eng., Toronto Univ., Ont., Canada
         
        
        
        
        
            fDate : 
11/1/1995 12:00:00 AM
         
        
        
        
            Abstract : 
The purpose of this paper is to experimentally verify the current limiting characteristics of a two material magnetic device consisting of a ferrite and permanent magnet material. A resonant pulsed excitation source and a 60 Hz ac source are used to test the characteristics of the device. The experiments confirm that there is a saturated and unsaturated inductance operating region and a current limiting and loss of current limiting kneepoint
         
        
            Keywords : 
current limiters; fault currents; ferrite devices; inductance; permanent magnets; current limiting characteristics; ferrite; kneepoint; magnetic device; permanent magnet material; resonant pulsed excitation source; saturated inductance; two-material passive DI/DT limiter; unsaturated inductance; Coils; Current limiters; Demagnetization; Fault current limiters; Fault currents; Ferrites; Inductance; Magnetic materials; Permanent magnets; Testing;
         
        
        
            Journal_Title : 
Magnetics, IEEE Transactions on