Alternative to Gas Purging in Pulse Charged Repetitive Spark Gaps.

摘要

This paper discusses a technique to produce a high-voltage spark gap that recovers in times as short as 1 msec. Historically, high rates of recovery have been achieved by purging spark gaps. The present design bypasses purging to achieve recovery in still gas. On the negative side, these fast-recovering spark gaps have a rather long resistive phase and their shot life may be limited. Working experience is limited to two pulse operations in the self-firing mode. Recovery has been achieved to 700 kV, 35 kA, and 1 kHz. The anomalous recovery seems to be related to the dominance of the formative phase in the gas-breakdown process. The formative phase being relatively insensitive in certain cases to the gas density, breakdown can be made independent of the gap's previous pulses. (ERA citation 08:039873)