Investigation of an SF<sub>6</sub>-selfblast circuit breaker

Lüders, Carsten; Suwanasri, Thanapong; Dommerque, Robert Karl

doi:10.1088/0022-3727/39/4/012

Cited by 18 publications

(12 citation statements)

References 9 publications

(15 reference statements)

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“…It can be observed that there is a relatively small area between LTA and HTA in which the temperature changes abruptly. The obtained distribution agrees quite well with other published results [4].…”

Section: Resultssupporting

confidence: 93%

“…6, 7, 8 show temperature, voltage and current density obtained in ANSYS ® for the 3D model at several steps of the simulation. Greater voltages do not appear at the first moments [1,4] because, as a first approximation, the initial plasma condition of the air is obtained by heating a small area of air between the contacts only in the first separation step. Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The plasma column and the electrodes have been modelled as pure resistive [4], this 3D model, based on the use of the method of the finite elements (FEM), has been generated with ANSYS ® [5]. The FEM model in each iteration receives the electrical current and temperature at each node from the previous iteration and calculates the drop potential between the electrodes and the new distribution of temperature.…”

Section: Methodsmentioning

confidence: 99%

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ARC roots FEM modelling and simulation at plane electrodes

Bueno-Barrachina¹,

Izquierdo

Peñuelas

et al. 2007

2007 8th International Conference on Electric Fuses and Their Applications

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The aim of this work is to model and to simulate the arc root generation processes in plane electrodes using a three-dimensional solid model based on the finite elements method (FEM). For this purpose, a loop integrating an electrical model in transient state and a solid model constituted by two plane electrodes has been used. The model includes: current, voltage, circuit impedance, plasma parameters, current density and temperature. The simulation results show that local heating is non-significant at the electrode surface, hence uniform flows of current are obtained and a plasma column is generated without the appearance of intense metal-melting arc roots. These are steps into a more comprehensive fluidthermo-electrical model of the arc using 3D FEM aimed at the development of more precise design and analysis engineering tools of arc based protection elements.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

ARC roots FEM modelling and simulation at plane electrodes

Bueno-Barrachina¹,

Izquierdo

Peñuelas

et al. 2007

2007 8th International Conference on Electric Fuses and Their Applications

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“…Recently, several results of arc simulations using CFD with phenomenological radiative heat transport models have been published [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Self-consistent radiation-based simulation of electric arcs: II. Application to gas circuit breakers

Iordanidis¹,

Franck²

2008

J. Phys. D: Appl. Phys.

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An accurate and robust method for radiative heat transfer simulation for arc applications was presented in the previous paper (part I). In this paper a self-consistent mathematical model based on computational fluid dynamics and a rigorous radiative heat transfer model is described. The model is applied to simulate switching arcs in high voltage gas circuit breakers. The accuracy of the model is proven by comparison with experimental data for all arc modes. The ablation-controlled arc model is used to simulate high current PTFE arcs burning in cylindrical tubes. Model accuracy for the lower current arcs is evaluated using experimental data on the axially blown SF6 arc in steady state and arc resistance measurements close to current zero. The complete switching process with the arc going through all three phases is also simulated and compared with the experimental data from an industrial circuit breaker switching test.

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“…Therefore, many studies have contributed to reducing the cost and increasing efficiency of interrupter development, e.g. computational fluid dynamics (CFD) simulation and phenomena understanding [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Interrupter Size Effect of High‐Voltage Gas Circuit Breaker on Thermal Interruption Performance and Current Zero Properties

Sakuyama

Kotsuji

Terada

et al. 2020

IEEJ Transactions Elec Engng

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Small model interrupters are convenient to investigate interrupting performance of high-voltage gas circuit breakers in terms of efficiency. However, the equivalence of interruption phenomena of small model interrupters (e.g., interrupting performance, interruption criteria, and geometric sensitivity) to product-scale interrupters has not been clarified. Interrupting tests with small and large model interrupters were carried out with the dimensions of the interrupter as parameters to clarify the effects of modified interrupter dimensions on blast pressure and interrupting performance. Arc voltage and arc conductance were measured to acquire detailed electrical behavior in the thermal interrupting phase. In the results, small model interrupters showed the same performance trends as geometrically modified large model interrupters. By introducing an interrupter size factor, the boundary of the extinction peak of the arc voltage and arc conductance at 200 ns before current zero that distinguishes the success and failure of interruption for both small and large models agreed well. Moreover, the arc parameters determined by Cassie and Mayr arc models were analyzed with consideration to interrupter size factor. In conclusion, the interrupter size factor was validated from the point of arc phenomena and an equivalence of small model to product-scale interrupter was confirmed.

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Investigation of an SF₆-selfblast circuit breaker

Cited by 18 publications

References 9 publications

ARC roots FEM modelling and simulation at plane electrodes

ARC roots FEM modelling and simulation at plane electrodes

Self-consistent radiation-based simulation of electric arcs: II. Application to gas circuit breakers

Interrupter Size Effect of High‐Voltage Gas Circuit Breaker on Thermal Interruption Performance and Current Zero Properties

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Investigation of an SF6-selfblast circuit breaker

Cited by 18 publications

References 9 publications

ARC roots FEM modelling and simulation at plane electrodes

ARC roots FEM modelling and simulation at plane electrodes

Self-consistent radiation-based simulation of electric arcs: II. Application to gas circuit breakers

Interrupter Size Effect of High‐Voltage Gas Circuit Breaker on Thermal Interruption Performance and Current Zero Properties

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Investigation of an SF₆-selfblast circuit breaker