The Role of Quench-Back in the Passive Quench Protection of Uncoupled Solenoids in Series With and Without Coil Sub-Division

被引：7

作者：

Guo, X. L. ^{[1
]}

Green, M. A. ^{[2
]}

Wang, L. ^{[3
]}

Wu, H. ^{[4
]}

Pan, H. ^{[5
]}

机构：

[1] Jiangsu Univ, Zhenjiang 212013, Peoples R China

[2] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[3] Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China

[4] HIT, Inst Cryogen & Superconduct Technol, Harbin 150001, Peoples R China

[5] Inst High Energy Phys, Beijing 100049, Peoples R China

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2011年 / 21卷 / 03期

关键词：

Quench-back; sub-division quench protection; MAGNETS;

D O I：

10.1109/TASC.2010.2090858

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper is the final paper in a series of papers that discusses passive quench protection for high inductance solenoid magnets. This report describes how passive quench protection system may be applied to superconducting magnets that are connected in series but not inductively coupled. Previous papers have discussed the role of magnet sub-division and quench back from a conductive mandrel in reducing the hot-spot temperature and the peak coil voltages to ground. When magnets are connected in series, quench-back from a conductive mandrel can cause other magnets in a string to quench even without inductive coupling between magnets. The magnet mandrels must be well coupled to the magnet circuit that is being quenched. When magnet circuit sub-division is employed to reduce the voltages-to-ground within magnets, the resistance across the subdivision becomes the most important factor in the successful quenching of the magnet string.

引用

页码：2388 / 2393

页数：6