Stabilization performance of rod-plane corona stabilized switch

A triggered and self-closing rod-plane corona stabilized spark switch is reported. Its rod electrode diameter, main gap and trigger gap are 2 mm,10 mm and 5 mm, respectively. The degree of field divergence is known to be larger than 7 by simulating electrostatic field of the switch. Experimental results show that, the corona onset voltage and breakdown voltage are 6.8 kV and 19.3 kV, respectively, based on which the corona stabilized factor is caculated to be 0.55. That is, the switch has good corona stabilized performance.