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A radial multichannel pseudospark switch for high voltage and high current applications

: Bergmann, K.; Müller, M.; Neff, W.; Lebert, R.


Walko, L.C. ; United States, Army, Research Laboratory:
Twenty-Third International Power Modulator Symposium 1998. Conference Record
Piscataway, NJ: IEEE, 1998
ISBN: 0-7803-4244-5
ISBN: 0-7803-4245-3
International Power Modulator Symposium <23, 1998, Rancho Mirage/Calif.>
Fraunhofer ILT ()
pulsed power switches; spark gap

A radial multichannel pseudospark switch with a special geometry is discussed. This geometry allows low erosive operation for pulsed currents with peak amplitudes of more than 100 kA, a pulse duration of several tens of microseconds, a current reversal up to 100 per cent and a repetition rate of more than 1 Hz. Some aspects of increasing the hold-off voltage with the constraints of the special geometry are discussed. A maximum hold-off voltage of 40 kV has been demonstrated. As an example the operation at an underwater spark is presented.