Elastomer Dielectric for Pulse Power

摘要

Selected elastomer dielectrics are characterized as high-voltage insulators for use in pulse power systems. Silicone, ethylene-propylene rubber and polyurethene were tested, but most of the data is for silicone. The particular power system developed uses a formed silicone insulator 76 cm in dia. and 3 mm thick as the major insulator between capacitors, railgap switches, load, and return conductor. The capacitor array is dc charged to 50 kV, and has an on-load current risetime of 5 x 10 exp 12 A/s and 1 Ma peak current. The results showed that the use of an elastomer dielectric made possible the construction of a pulser one order of magnitude smaller than previously constructed pulsers having the same current characteristics. Also, use of the elastomer dielectrics in pulse power systems leads to improved production techniques and system reliability. (ERA citation 06:006406)