Heavy-duty explosively operated pulsed opening and closingswitches: reducing cost and turnaround time railgun powersupplies
Improvements to heavy-duty, explosively operated opening and closing switches to reduce component cost, installation cost, and turnaround time without sacrificing reliability are discussed. Heavy-duty opening and closing switches operated by small explosive charges (50 g or less) are essential to op...
Gespeichert in:
Veröffentlicht in: | IEEE transactions on magnetics 1991-01, Vol.27 (1), p.369-373 |
---|---|
Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Improvements to heavy-duty, explosively operated opening and closing switches to reduce component cost, installation cost, and turnaround time without sacrificing reliability are discussed. Heavy-duty opening and closing switches operated by small explosive charges (50 g or less) are essential to operation of the 60 MJ Balcones power supply. The six independent modules can be discharged sequentially. Each delayed inductor must be isolated from the railgun circuit with a heavy-duty closing switch capable of carrying megampere currents of millisecond duration. Similar closing switches are used to crowbar the railgun as the projectile approaches the muzzle. The switches-both opening and closing-are characterized by microhm resistance in the closed state. The opening switches must be structurally and thermally capable of carrying megampere currents for more than 100 ms (~10(5) C) and develop 10 kV on opening, stay open for 10(-2) s, and safely and reliably dissipate megajoules of inductive energy in the event of a fault, a failure of the switch to operate, or an attempt to commutate into an open circuit. An example of the severe switching requirements is presented |
---|---|
ISSN: | 0018-9464 |
DOI: | 10.1109/20.101059 |