Simulation of the thermal radiation effect of an arc on polymer walls in low-voltage circuit breakers

Nossov, V. V.; Hage, B.; Jusselin, B.; Fievet, C.

doi:10.1134/s1063784207050180

Cited by 21 publications

(15 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nossov et al [12] investigated the influence of the reabsorption of radiation within the vapor layer and found great influence on the ablation process, because most of the UV component of radiation is absorbed in the vapor layer. To verify these results and to analyze the calculated absorption coefficients for PA 66, a simple model was investigated where a temperature profile for two zones, the hot arc core and the cold vapor layer, is defined (at ambient pressure).…”

Section: Characteristics Of Pa 66 Vapor Layermentioning

confidence: 99%

Low-Voltage Arc Simulation with Out-Gassing Polymers

Rumpler

Stammberger

Zacharias

2011

2011 IEEE 57th Holm Conference on Electrical Contacts (Holm)

View full text Add to dashboard Cite

Polymer walls and inserts are an important design criterion in low-voltage switching devices. Besides their good insulation properties they are used to influence the switching arc. An important part of the energy dissipated in the arc is absorbed by the walls of the arc chamber. This leads to degradation and evaporation of the polymer and subsequent impact on and interaction with the switching arc. This contribution explains the enhancements of an existing simulation model for the interaction between the low-voltage switching arc and walls composed of polyamide PA 66. This includes a model of plastic ablation, the influence of the plastic vapor on the transport properties of the arc as well as on its radiation. Calculations and comparisons with experimental results show the applicability of the model in arc chambers that are close to reality.

show abstract

Section: Characteristics Of Pa 66 Vapor Layermentioning

confidence: 99%

Low-Voltage Arc Simulation with Out-Gassing Polymers

Rumpler

Stammberger

Zacharias

2011

2011 IEEE 57th Holm Conference on Electrical Contacts (Holm)

View full text Add to dashboard Cite

show abstract

“…Polymeric materials behave differently [4] as decomposition processes consist of different processes, e.g. photo-chemical and photo-thermal [5]. Therefore the amount of gases depend on the materials for such a purpose, as well as the power that reaches the surface of the material.…”

Section: Introductionmentioning

confidence: 99%

Time-resolved ablation performance of polymers as wall materials for switching applications

Zhang

Friberg

2015

2015 3rd International Conference on Electric Power Equipment – Switching Technology (ICEPE-ST)

View full text Add to dashboard Cite

Experimental setup for investigating the timeresolved ablation performance of polymers -functioning as wall materials for low voltage switching applications, was designed in this work. The test rig allows for chopping/bypassing a fault current up to the magnitude of 2.7 kA generated by a RLC damped circuit, in step of 1 millisecond. An updated test chamber allowing for characterizing the pressure built-up during the polymer ablation was introduced as well. Characterization of the testing system was first performed in respect of the injected energy and pressure generated versus arcing time; polymeric material performances as regards mass loss, pressure attributed to gassing species as well as injected energy, versus resolved arcing durations, were thereafter investigated and compared.

show abstract

“…Certain arc electric cutting techniques are based on the rapid elongation of the arc between the contacts and others, on a rolling of the arc between two insulating parts. Numerous theoretical [3,4,13,18,25,[27][28][29][30][31][32][33][34][35][36] and experimental [3,10] studies have already been carried out on polymers.…”

Section: Introductionmentioning

confidence: 99%

Transport Coefficients of Air - PMMA Mixtures Thermal Plasmas

Karim¹,

Nièssan²,

Charles³

et al. 2020

AJMSE

View full text Add to dashboard Cite

The transport coefficients of Air-PMMA mixtures thermal plasmas is important to estimate the performances of cutting of the electrical arc in this gas by a circuit breaker. In this paper, Air-PMMA mixtures thermal plasmas dynamical viscosity, thermal and electrical conductivities coefficients are calculated in a temperature range from 5000K to 30000K. The calculations are made by supposing thermodynamic equilibrium at pressure of 1 bar to 10 bar. The results of the calculations show the influence of the initial proportion of PMMA but also that of the pressure on the mixture plasma transport coefficients. As the efficiency of the breaking of the electric current by the circuit breaker depends closely on the thermal and electrical characteristics of the extinguishing medium, this extinguishing medium should have a high thermal conductivity and an electrical conductivity varying rapidly with temperature. The plasma of the mixture constituted by 80% of air and 20% of PMMA presents at first sight best characteristics for the breaking of electric current. It has the highest thermal conductivity peak among the plasmas of the mixtures studied.

show abstract

Simulation of the thermal radiation effect of an arc on polymer walls in low-voltage circuit breakers

Cited by 21 publications

References 15 publications

Low-Voltage Arc Simulation with Out-Gassing Polymers

Low-Voltage Arc Simulation with Out-Gassing Polymers

Time-resolved ablation performance of polymers as wall materials for switching applications

Transport Coefficients of Air - PMMA Mixtures Thermal Plasmas

Contact Info

Product

Resources

About