Experimental investigations on arc movement and commutation in the Low-Voltage Circuit Breaker

14th High-Tech Plasma Processes Conference

Quéméneur, Jean^1 ; Masquère, Mathieu^1 ; Freton, Pierre^1 ; Gonzalez, Jean-Jacques^1 ; Joyeux, Patrice^2

Université de Toulouse, UPS, CNRS, INPT, LAPLACE (Laboratoire Plasma et Conversion d'Energie), 118 route de Narbonne, Toulouse Cedex 9

F-31062, France^1

Hager Electro SAS, 132 boulevard d'Europe, Obernai

67210, France^2

关键词: Current sources;    Experimental investigations;    Experimental set up;    High intensity arcs;    High speed imaging;    Low voltage circuit breakers;    Moving contact;    Post-treatment method;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/825/1/012012/pdf
DOI  :  10.1088/1742-6596/825/1/012012

来源: IOP

【 摘 要 】

Displacement of an electrical arc between two parallel arc runners is studied with high-speed imaging, voltage, current and pressure measurements. The experimental set-up is detailed from the current source to the post-treatment methods. The influence of intensity, gas exhausts and volume behind the moving contact on arc commutation and movement are investigated. In the context of Low-Voltage Circuit Breaker (LVCB), it is shown that for high-intensity arcs, evacuating the hot gas is necessary for a good motion of the arc. Furthermore, a configuration of exhaust allowing a quick movement will not work for all current levels.