HF-reignition phenomena related to post-arc current in vacuum interrupters

Rene P.P. Smeets; Honqun Li; Nico J.G. Lamerichs; Eiji Kaneko

doi:10.1117/12.174642

1 May 1994 HF-reignition phenomena related to post-arc current in vacuum interrupters

Rene P.P. Smeets, Honqun Li, Nico J.G. Lamerichs, Eiji Kaneko

Proceedings Volume 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum; (1994) https://doi.org/10.1117/12.174642
Event: XVI International Symposium on Discharges and Electrical Insulation in Vacuum, 1994, Moscow-St. Petersburg, Russian Federation

Abstract

After interruption of a high-frequency (hf) current by a vacuum arc, two distinct types of reignition can be observed. The first type follows immediately after interruption, the second type tends to allow a currentless pause of a few tenths of a microsecond. The post-arc current that flows after hf-current interruption has been measured and has a peak of several A and a decay time of a several hundreds of ns. A dynamic sheath model for the decaying plasma after hf current interruption has been used successfully to model the measured post-arc current waveshapes. The first type of reignition may be attributed to thermal stress during the period in which no ion sheath has been formed yet, the second type to high electric fields, either due to the ion sheath, or due to the TRV, the weight of each depending on gaplength and di/dt.

Citation Download Citation

Rene P.P. Smeets, Honqun Li, Nico J.G. Lamerichs, and Eiji Kaneko "HF-reignition phenomena related to post-arc current in vacuum interrupters", Proc. SPIE 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum, (1 May 1994); https://doi.org/10.1117/12.174642

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