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Communication Dans Un Congrès Année : 1999

Spectroscopic study of a cutting electrical arc in HBC fuse

Pierre Bezborodko
  • Fonction : Auteur
René Pellet
  • Fonction : Auteur

Résumé

This paper describes an experimental set up used to investigate the physcical parameters of the arc, in fact the temperature and the electron density. Improvements have been made from the last set up. Fuses studied here are High Breaking Capacity fuses (HBC). In this study, the arc dissipates 1 200 J, the peak of current is about 2 200 A and the duration of the arc is 3 ms. The whole of the visible spectrum has been registered, from 360 nm to 800 nm, in the exploding part of the arc. The spectrum consists of continuous light together with spectral lines appear mostly when the electric current decreases. The behaviour of the spectra show that there is a big gradient of species concentrations in the arc, together with a high gradient of temperature. The temperature is measured from Si II lines and metallic spectral transitions. The calculations show a decrease from about 17 000 K at the beginning of the phenomenon, until about 7 000 K at 4 ms after the beginning of the electric current. The measured values of the electron density vary between 10E17 cm-3 and 10E19 cm-3.
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Dates et versions

hal-00018811 , version 1 (09-02-2006)

Identifiants

  • HAL Id : hal-00018811 , version 1

Citer

William Bussiere, Pierre Bezborodko, René Pellet. Spectroscopic study of a cutting electrical arc in HBC fuse. 1999, pp.113-117. ⟨hal-00018811⟩
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