[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4313/TEEM.2006.7.2.087

Current Limiting Characteristics of Flux-lock Type SFCL according to Inductance Variation

Choi Hyo-Sang (Department of Electrical Engineering, Chosun University)
Park Hyoung-Min (Department of Electrical Engineering, Chosun University)
Cho Yong-Sun (Department of Electrical Engineering, Chosun University)

Publication Information

Transactions on Electrical and Electronic Materials / v.7, no.2, 2006 , pp. 87-89 More about this Journal

Abstract

We investigated the current limiting characteristics of flux-lock type superconducting fault current limiter(SFCL) according to inductance variation of coil 2. The flux-lock type SFCL consists of two coils. The primary coil is wound in parallel to the secondary coil through an iron core, and the secondary coil is connected to the superconducting element in series. The operation of the flux-lock type SFCL can be divided into the subtractive and the additive polarity winding operations according to the winding directions between the coil 1 and coil 2. The current limiting characteristics in two winding directions were dependent of on the ratio of the number of turns of coil I and coil 2. The fault current increased when the number of turns of coil 2 increased in the subtractive polarity winding. On the contrary, the fault current decreased under the same conditions in case of the additive polarity winding.

Keywords

Flux-lock type SFCL; Superconducting element; Ratio of the number of turns;

Citations & Related Records

Reference

1	X. Grandos, T. Puig, J. Teva, E. Mendoza, and X. Obradors, 'Quench behavior of the switching elements of a hybrid HTS current limiter', IEEE Trans. on Appl. Supercond., Vol. 11, No. 1, p. 2406, 2001 DOI ScienceOn
2	R. K. Smith, P. G. Slade, M. Sarkozi, E. J. Stacey, J. J. Bonk, and M. Mehta, 'Solid state distribution current limiter and circuit breaker : application requirements and control strategies', IEEE Trans. on Power Deli., Vol. 8, No. 3, p. 1155, 1993 DOI ScienceOn
3	Leung E., 'Surge protection for power grids', IEEE Spectrum, Vol. 34, p. 26, 1997
4	W. Paul and M. Chen, 'Superconducting control for surge currents', IEEE Spectrum, Vol. 35, No. 5, p. 49, 1998
5	H. S. Choi, H. R. Kim, and O. B. Hyun, 'Operating properties of superconducting fault current limiters based on YBCO thin films', Cryogenics, Vol. 41, No. 3, p. 163, 2001 DOI ScienceOn
6	M. S. Joo and T. K. Ko, 'The analysis of the fault current according to core saturation and fault angles in an inductive high-Tc superconducting fault current limiter', IEEE Trans. on Appl. Supercond., Vol. 6, No. 2, p. 62, 1996 DOI ScienceOn
7	T. Hoshino, K. M. Salim, M. Nishikawa, I. Muta, and T. Nakamura, 'Proposal of saturated DC reactor type superconducting fault current limiter', Cryogenics, Vol. 41, No. 7, p. 469, 2001 DOI ScienceOn