Thursday 10
G. Pulsed-Power Application
Chair: Z. Petrovic - Each talk is 10'+2' duration
› 16:15 - 16:30 (15min)
› Blaise
Performance of plasma closing switches filled with air, nitrogen and a nitrogen/oxygen mixture
Michael Hogg  1@  , Igor Timoshkin  1@  , Scott Macgregor  1@  , Martin Given  1  , Mark Wilson  1@  , T Wang  1@  
1 : University of Strathclyde  -  Website
16 Richmond Street, Glasgow G1 1XQ, Scotland, UK -  United Kingdom

This paper presents an experimental investigation into operation of a triggered, two electrode switch energised with a HV impulses superimposed over a DC charging voltage. A sphere-sphere topology with an electrode separation of 2 mm was DC energised to 6 kV, 7 kV and 8 kV and triggering impulses of varying dV/dt have been used. Breakdown voltage, time delay to breakdown and jitter have been measured for air, nitrogen and a 60% nitrogen/40% oxygen mixture. It is shown that higher dV/dt and higher DC energisation provide more stable and shorter time delays to breakdown.

 

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