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http://dx.doi.org/10.9714/psac.2009.11.3.020

Quench Analysis and Operational Characteristics of the Quench Detection System for the KSTAR PF Superconducting Coils  

Chu, Y. (국가핵융합 연구소)
Yonekawa, H. (국가핵융합 연구소)
Kim, Y.O. (국가핵융합 연구소 장치운전팀)
Park, K.R. (국가핵융합 연구소 KSTAR 운전연구팀)
Lee, H.J. (국가핵융합 연구소 KSTAR 운전연구팀)
Oh, Y.K. (국가핵융합 연구소)
Publication Information
Progress in Superconductivity and Cryogenics / v.11, no.3, 2009 , pp. 20-25 More about this Journal
Abstract
The quench detection system of the KSTAR (Korea Superconducting Tokamak Advanced Research) primarily uses the resistive voltage measurement due to a quench. This method is to detect the resistive voltage generated by a quench, which is continuously maintained above the preset voltage threshold for a given holding time. As the KSTAR PF (Poloidal Field) coils are operated in the pulse current mode, the large inductive voltages are generated. Therefore the voltage threshold and the quench holding time should be determined by considering both the inductive voltages measured during the operation, and the maximum conductor temperature rise through the quench analysis. In this paper, the compensation methods for minimizing the inductive voltages are presented for the KSTAR PF coils. The quench hot spot analysis of the PF coils was carried out by the analytical and numerical methods for determining the proper values of the quench voltage threshold and the allowable quench protection delay time.
Keywords
KSTAR; quench; hot-spot;
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Times Cited By KSCI : 1  (Citation Analysis)
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