Two-dimensional modelling of internal arc effects in an enclosed MV cell provided with a protection porous filter

Medium voltage (MV) cells have to respect standards (for example IEC ones (IEC TC 17C 2003 IEC 62271-200 High Voltage Switchgear and Controlgear-Part 200 1st edn)) that define security levels against internal arc faults such as an accidental electrical arc occurring in the apparatus. New protection...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2007-05, Vol.40 (10), p.3137-3144
Main Authors: Rochette, D, Clain, S, André, P, Bussière, W, Gentils, F
Format: Article
Language:English
Subjects:
Electric discharges
Electric power
Engineering Sciences
Exact sciences and technology
Fluid Dynamics
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
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Summary:Medium voltage (MV) cells have to respect standards (for example IEC ones (IEC TC 17C 2003 IEC 62271-200 High Voltage Switchgear and Controlgear-Part 200 1st edn)) that define security levels against internal arc faults such as an accidental electrical arc occurring in the apparatus. New protection filters based on porous materials are developed to provide better energy absorption properties and a higher protection level for people. To study the filter behaviour during a major electrical accident, a two-dimensional model is proposed. The main point is the use of a dedicated numerical scheme for a non-conservative hyperbolic problem. We present a numerical simulation of the process during the first 0.2 s when the safety valve bursts and we compare the numerical results with tests carried out in a high power test laboratory on real electrical apparatus.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/40/10/017