Optimizing wire parameters in exploding wire arrays

C. Davis, A. Neuber, J. Stephens, A. Young, J. Dickens, M. Kristiansen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

Exploding wire arrays as fast switches are of interest for explosive pulsed power applications utilizing magnetic flux compression. This type of opening switch has proven effective in producing pulses of several hundred kilovolts into vacuum diode loads. The research presented here discusses an exploding wire array capable of producing single digit kilo-joules, 100 nanosecond pulses when driven by a 45 kilo-Amp current with a waveform closely resembling typical magnetic flux compression output. For this specific parameter range, the optimal fuse design was developed based on the experimental behavior of the fuse under variation of parameters such as wire spacing, shielding, and quenching medium. Each fuse is composed of several silver wires arranged in a straight wire cylindrical array and is typically pressurized in a chamber filled with about 0.6 MPa of SF6. The tradeoff between wire spacing and voltage output was addressed by designing four different fuse termination pairs each with a diameter that increased wire spacing from 5 to 20 mm in 5 mm increments. A wire shield test was also conducted as an extension to the wire spacing experiment to uncover any mutual radiative effects between wires on fuse opening behavior. The optimum fuse design, including the optimum fuse wire diameter, will be discussed with a 20 Ohm resistive load as well as a vacuum diode load with similar impedance.

Original languageEnglish
Title of host publicationProceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010
Pages549-552
Number of pages4
DOIs
StatePublished - 2010
Event2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010 - Atlanta, GA, United States
Duration: May 23 2010May 27 2010

Publication series

NameProceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010

Conference

Conference2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010
CountryUnited States
CityAtlanta, GA
Period05/23/1005/27/10

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    Davis, C., Neuber, A., Stephens, J., Young, A., Dickens, J., & Kristiansen, M. (2010). Optimizing wire parameters in exploding wire arrays. In Proceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010 (pp. 549-552). [5958416] (Proceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010). https://doi.org/10.1109/IPMHVC.2010.5958416