Title :
Research on transport properties of the metal vapor vacuum arc
Author :
Liu, Xiaoming ; Li, Zhengbo ; Cao, Yundong ; Zou, Jiyan ; Leng, Xue ; Lin, Hongmei
Author_Institution :
Sch. of Electr. Eng., Shenyang Univ. of Technol., Shenyang, China
Abstract :
Metal vapor arc is inevitably occurred during the interruption of the vacuum circuit breaker (VCB). In this paper, a micro arc model of the metal vapor for the VCB is proposed based on the Eindhoven model, and the transport property coefficients and the electrical conductivity distribution are calculated. And the influences of temperature, pressure and particle collision on the electrical conductivity have been obtained. Based on the thermodynamic equilibrium model and the Boltzmann method, the variations of arc conductivity with the particle density, temperature and vacuum degree has been found, and the quantitative descriptions of the transport properties have been obtained.
Keywords :
Boltzmann equation; arcs (electric); electrical conductivity; thermodynamics; vacuum circuit breakers; vacuum interrupters; Boltzmann method; Eindhoven model; arc conductivity; electrical conductivity distribution; interruption; metal vapor vacuum arc; microarc model; particle collision; particle density; thermodynamic equilibrium; transport properties; vacuum circuit breaker; Conductivity; Copper; Ionization; Plasma temperature; Temperature; Vacuum arcs;
Conference_Titel :
Electric Power Equipment - Switching Technology (ICEPE-ST), 2011 1st International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4577-1273-9
DOI :
10.1109/ICEPE-ST.2011.6122943
