Order Publications

Reference: ISH2015_537

ISH Collection

Comprehensive Experimental Study on Vacuum Breakdown Phenomenon through Plasma Flare Expansion, Fusion and Deconstruction Process



The development of high-voltage vacuum circuit breakers requires a fundamental knowledge of the vacuum breakdown phenomenon including plasma flare expansion, fusion and deconstruction processes. However, few experimental results are available in literature with the exception of flare expansion speed, and the flare behaviours have never been fully understood. In this paper, we describe self-consistent characterisation of the plasma flare behaviours achieved using various optical techniques including Shack-Hartmann type laser wavefront sensors for two-dimensional electron density imaging, a laser absorption method for plasma temperature measurement, high-speed framing photography for speed determination of flare expansion and optical emission spectroscopy for plasma composition assessment. Such comprehensive experimental data are particularly useful for the realisation of novel technology to precisely control the flare behaviours and effectively improve the withstand voltage of vacuum circuit breakers.

File Size: 704,3 KB

Year: 2015

FREE free
Non member
FREE free

Your AccountYour Account

Password forgotten


may download free of charge all publications including most recent ones

Non Members

may download free of charge publications over three years old and purchase all publications

For any questions in connection with the on-line library, contact:

Publications and Editions Manager