An Explosively Actuated Electrical Switch Using Kapton Insulation
NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA
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The designs and manufacture of several explosively-actuated, electrical closing switches are described. The switches are fast operating can handle very high electrical power are highly energy efficient, with low inductance and low resistance, when closed but are able to withstand very high voltages when open. The switches exploit shock-induced conductivity effects in polypyromellitimide insulators PPMI, e.g., Kapton. The key to the successful operation of the switches is to use them in the transverse mode of operation, i. e., where the detonation wave travels transverse to the applied electric field. Through the research described in this report, the many factors that are crucial to the design of an effective switch have been identified. Various switch designs and the results of using them in numerous applications are provided.... Explosives, PPMI, High voltage, Electrical closing switch, Kapton, High power, Detonation wave, Conductivity of explosives.
- Electrical and Electronic Equipment
- Ammunition and Explosives