Analysis of the Optimal Operation Frequency With Lowest Time-Delay Jitter for an Electrically Triggered Field-Distortion Spark Gap

Autor: Wang Ganping, Mingdong Zhu, Ivor R. Smith, Li Chunxia, Bucur M. Novac, Gong Haitao, Li Fei, Zhang Beizhen, Falun Song, Xiao Jin, Gan Yanqing
Rok vydání: 2019
Předmět:
Zdroj: IEEE Transactions on Plasma Science. 47:4708-4712
ISSN: 1939-9375
0093-3813
DOI: 10.1109/tps.2019.2937457
Popis: This work was stimulated by the assumption that for a gas-filled spark gap closing switch operating at a high repetition frequency, there is an optimal frequency range in which the time-delay jitter reaches a minimum value. The experiments to test this assumption use an electrically triggered, field-distortion spark gap filled with the SF6/N2 gas mixture. The results show that indeed, the time-delay jitter decreases for a range of frequencies for which the filling gas can substantially restore the interelectrode insulation before increasing at a higher operation frequency. The experimental results demonstrate the correctness of the abovepresented assumption: the time-delay jitter of the field-distortion spark gap has its minimum when the unit operates in the repetition frequency range between 20 and 30 Hz. Since the recovery time depends on the gas species and the gap distance, the optimum operation frequency range should also vary depending on the spark-gap distance and the filling gas properties.
Databáze: OpenAIRE