Eddy-Current Effects in Circuit Breakers During Arc Displacement Phase

Chadebec, Olivier; Meunier, G.; Mazauric, Vincent; Floch, Yann Le; Labie, Patrice

doi:10.1109/tmag.2004.824768

Cited by 30 publications

(14 citation statements)

References 5 publications

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“…In the breaking process, the transient effects can be neglected in a first approach [9]. Therefore it is possible to model the process within the previous studies FV electromagnetic developments.…”

Section: Circuit Breaker Modelingmentioning

confidence: 99%

Dedicating Finite Volume Method to Electromagnetic Plasma Modeling: Circuit Breaker Application

et al. 2009

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For several applications including strong hydrodynamics constraints (like in a circuit breaker), Finite Element solvers are not suitable for fluid dynamical modeling. For these applications, the coupling between the Computational Fluid Dynamics and the electromagnetism modeling is not easy. In this context, a magnetodynamic formulation is developed using the Finite Volume Method to address specific issues in multiphysics involved in circuit breaker modeling. The principles of Finite Volume Method, their using for the electromagnetism modeling, and multiphysics coupling method are described. Problems are expressed within current based T{T 0 { formulation which differs drastically from other developments given in the context of Finite Volume Method. Finally a circuit breaker simulation is carried out within a magnetostatic formulation.Index Terms-Circuit breaker, finite volume method, magneto-hydrodynamic, plasma.

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Section: Circuit Breaker Modelingmentioning

confidence: 99%

Dedicating Finite Volume Method to Electromagnetic Plasma Modeling: Circuit Breaker Application

et al. 2009

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“…On the other hand, if circuit breaker contains ferromagnetic materials, the field becomes (6) where represents the field created by the ferromagnetic part. is obtained by the following FE's resolution (free divergence of the induction) (7) coupled with circuit equations [3]. is then the magnetic permeability of the material.…”

Section: ) Magnetic Field Created By Electrodesmentioning

confidence: 99%

“…For this, it is then necessary to develop a Lagrangian description, where each moving conductor has its own coordinate system. A step by step resolution is adopted and, at each time step, the following equations are solved by a finite difference time-stepping approach with an implicit scheme [6], [7] (13) (14) where is the resistivity of the material, is the permeability, and is the magnetic field.…”

Section: B Eddy Currents Computationmentioning

confidence: 99%

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Coupling of an electrical arc model with FEM for vacuum interrupter designs

et al. 2005

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We present a model of a rotating arc by coupling a finite element method (FEM) and an arc model. A FEM is used to calculate magnetic field between electrodes taking into account the real current distribution in the contacts and in the arc; moreover, ferromagnetic effects and induced currents can be taken into account. A phenomenological arc model is used to predict the arc voltage, which depends on the local magnetic field and the arc length. This arc voltage is updated as the arc displaces itself across the contact surface. The information about arc voltage and local circuit equations is sufficient to find the velocity of the moving arc; hence this model seems more effective than models using Lorentz-forces to describe arc movement which need a priori knowledge about viscosity. This presented method seems to be a promising tool to describe the behavior of rotating arcs in vacuum circuit breakers.Index Terms-Electrical arc model, finite element method (FEM), vacuum arc, vaccum circuit breakers.

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“…Iturregi et al analyzed the influence of the number of splitter plate on arc voltage at direct current (DC) situation [5]. The formulations to calculate eddy currents in electrodes and splitter plate were developed and the eddy current effect on the arc splitting process was simulated [6]. But the influences of frequency and the number of splitter plates at higher frequency on arc motion are not clear.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of low voltage Arc Motion Process at Various Frequencies

Yin¹,

Li²,

Wang³

2017

PPT

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Abstract.A three-dimensional (3D) magneto-hydro-dynamic (MHD) model of air arc plasma is built to investigate the frequency effects on the arc motion process with different number of splitter plates. Based on this model, the arc voltage and current density are obtained. The arc motion time is normalized with the frequency and compared at different numbers of splitter plate. The result shows that the normalized time and the arc voltage peak increase with increases of the number of splitter plate.

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Eddy-Current Effects in Circuit Breakers During Arc Displacement Phase

Cited by 30 publications

References 5 publications

Dedicating Finite Volume Method to Electromagnetic Plasma Modeling: Circuit Breaker Application

Dedicating Finite Volume Method to Electromagnetic Plasma Modeling: Circuit Breaker Application

Coupling of an electrical arc model with FEM for vacuum interrupter designs

Numerical Analysis of low voltage Arc Motion Process at Various Frequencies

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