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Reduction of Electromagnetic Force in AC Distributed Winding of Fault Current Limiter under Short-Circuit Condition
Journal of Magnetics, Volume 20, Number 4, 31 Dec 2015, Pages 400-404
Asef Ghabeli * (Young Researchers and Elite Club, Sari Branch, Islamic Azad University), Mohammad Yazdani-Asrami (Young Researchers and Elite Club, Sari Branch, Islamic Azad University), Aref Doroudi (Faculty of Electrical Engineering, Shahed University), S. Asghar Gholamian (Electrical Machinery Laboratory, Faculty of Electrical and Computer Engineering)
Abstract

Various kinds of winding arrangements can be used to enable fault current limiters (FCL) to tolerate higher forces without resulting in a substantial increase in construction and fabrication costs. In this paper, a distributed winding arrangement is investigated in terms of its effects on the short-circuit forces in a threephase FCL. The force magnitudes of the AC supplied windings are calculated by employing a finite elementbased model in the time stepping procedure. The leakage flux and radial and axial force magnitudes obtained from the simulation are compared to those obtained from a conventional winding arrangement. The comparison shows that the distributed winding arrangement significantly reduces the radial and, especially, the axial force magnitudes.


 

Keywords: fault current limiter; short-circuit current; finite element method; electromagnetic force
DOI: http://dx.doi.org/10.4283/JMAG.2015.20.4.400
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