Arc Shape and Arc Temperature Measurements in SF<sub>6</sub> High-Voltage Circuit Breakers Using a Transparent Nozzle

Bai, Shi; Luo, Haiyun; Guan, Yi; Liu, Weidong

doi:10.1109/tps.2018.2834735

Cited by 9 publications

(9 citation statements)

References 5 publications

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“…In the developed model described above, the temperature characteristics of the arc shaft were obtained from the experiment of switching off the symmetrical short-circuit current of 10 kA [76]. The proposed model of the switching arc was implemented in numerical software using the finite element method based on a moving-mesh technique (ALE method).…”

Section: Discussionmentioning

confidence: 99%

“…The arc column measured temperature is assigned to the line. The temperature is obtained from the experiment of 10 kA symmetrical short-circuit breaking [76].…”

Section: The Proposed Model Of Interaction Between Sf6 Gas Flow and Arcmentioning

confidence: 99%

“…At the line boundaries (Figure 9b), the temperature of the arc stem was set according to [76] with a current cut of 10 kA. A feature of the model was the fact that the line moved along with the moving contact until the contacts opened (moving mesh).…”

Section: The Proposed Model Of Interaction Between Sf6 Gas Flow and Arcmentioning

confidence: 99%

“…The temperature on the boundaries that represent the experimental arc temperature profile (according to [76]): T = T 0 (44)…”

Section: The Proposed Model Of Interaction Between Sf6 Gas Flow and Arcmentioning

confidence: 99%

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Fluid Dynamics Calculation in SF6 Circuit Breaker during Breaking as a Prerequisite for the Digital Twin Creation

Popovtsev,

Khalyasmaa,

Patrakov

2023

Axioms

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The requirements to switching the capacities of SF6 circuit breakers submitted by Russian Grid companies are difficult to satisfy. The first limitation is related to material and financial costs in order to create a new requirement-satisfying switching device. The second limitation is dictated by the necessity of calculating complex physical processes in a circuit braker interrupter during fault–current making or breaking before creating a prototype. The latter task is reduced to the problem of simulating the processes of interaction between the switching arc and the SF6 gas flow. This paper deals with the solution of the problem both analytically by a special method and numerically by a numerical software package through the creation of a mathematical model of the interaction process. The switching arc is taken into account as a form of a temperature source, based on experimental data on measuring the temperature of the arc column. The key feature of the research is to use the finite element method based on a moving mesh—the Arbitrary Lagrangian Eulerian (ALE) method. Such a problem statement allows us to take the contact separation curve of the circuit breaker into account as the input data of the model. The calculations were carried out during fault-current breaking by a 110 kV SF6 dead-tank circuit breaker. The calculations of pressure and mass flow in the under-piston volume change, gas flow speed, and temperature depending on the contact separation are given. The proposed model of the switching arc was used to simulate the process of 25 kA symmetrical fault–current breaking and was compared with an experiment.

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Section: Discussionmentioning

confidence: 99%

“…The arc column measured temperature is assigned to the line. The temperature is obtained from the experiment of 10 kA symmetrical short-circuit breaking [76].…”

Section: The Proposed Model Of Interaction Between Sf6 Gas Flow and Arcmentioning

confidence: 99%

Section: The Proposed Model Of Interaction Between Sf6 Gas Flow and Arcmentioning

confidence: 99%

“…The temperature on the boundaries that represent the experimental arc temperature profile (according to [76]): T = T 0 (44)…”

Section: The Proposed Model Of Interaction Between Sf6 Gas Flow and Arcmentioning

confidence: 99%

See 2 more Smart Citations

Fluid Dynamics Calculation in SF6 Circuit Breaker during Breaking as a Prerequisite for the Digital Twin Creation

Popovtsev,

Khalyasmaa,

Patrakov

2023

Axioms

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show abstract

“…By adopting the absolute intensity method for spectral lines F I 634.8, F I 641.3, C II 657.8 and C II 658.3 nm, Kozakov et al [8] obtained the radial arc temperature profiles in a polytetrafluoroethylene (PTFE) nozzle. Bai et al [9] measured three copper atomic spectral lines Cu I 510.5, Cu I 515.3 and Cu I 521.8 nm at different arc ignition time, to reveal the time-resolved axial arc temperature distributions by using the relative line intensity method. With the help of a CCD and filter devices, Takeuchi and Kubono [10] used the relative line intensity method for two copper atomic spectral lines (Cu I 465.1 and Cu I 515.3 nm), to calculate the temperature and the metal-vapor quantity in the cross-section of the arc column near the cathode.…”

Section: Introductionmentioning

confidence: 99%

Measurement of radial temperature distributions of the blown CO₂ arcs under different conditions

Li¹,

Fan²,

Wu³

et al. 2019

Plasma Sci. Technol.

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In this paper, the radial temperature distributions of the blown CO 2 arcs in a model gas circuit breaker were investigated by optical emission spectroscopy methods. The CO 2 flows with different flow rates (50, 100 and 150 l min −1 ) were created to axially blow the arcs burning in a polymethyl methacrylate (PMMA) nozzle. Discharges with different arc currents (200 and 400 A) were conducted in the experiment. The absolute intensity method was applied for a carbon ionic line of 657.8 nm to obtain the radial temperature profiles of the arc columns at a cross-section 1 mm above the nozzle. The calibration for the intensity of the C II 657.8 nm line was achieved by the Fowler-Milne method with the help of an oxygen atomic line of 777.2 nm. The highest temperature obtained in the arc center was up to 19 900 K when the arc current was 400 A and the CO 2 flow rate was 50 l min −1 , while the lowest temperature in the arc center was about 15 900 K when the arc current was 200 A and the CO 2 flow rate was 150 l min −1 . The results indicate that as the arc current increases, the temperature in the arc center would also increase apparently, and a larger gas flow rate would lead to a lower central temperature in general. It can also be found that the influence of the CO 2 flow rate on the arc temperature was much less than that of the arc current under the present experimental conditions. In addition, higher temperature in the arc center would cause a sharper temperature decrease from the central region towards the edge.

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Study on Macroscopic Performance and Characteristics of DC Arc in Condition of Short Gap

Guan

Wei

Zhu

et al. 2022

Lecture Notes in Electrical Engineering

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Arc Shape and Arc Temperature Measurements in SF₆ High-Voltage Circuit Breakers Using a Transparent Nozzle

Cited by 9 publications

References 5 publications

Fluid Dynamics Calculation in SF6 Circuit Breaker during Breaking as a Prerequisite for the Digital Twin Creation

Fluid Dynamics Calculation in SF6 Circuit Breaker during Breaking as a Prerequisite for the Digital Twin Creation

Measurement of radial temperature distributions of the blown CO₂ arcs under different conditions

Study on Macroscopic Performance and Characteristics of DC Arc in Condition of Short Gap

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Arc Shape and Arc Temperature Measurements in SF6 High-Voltage Circuit Breakers Using a Transparent Nozzle

Cited by 9 publications

References 5 publications

Fluid Dynamics Calculation in SF6 Circuit Breaker during Breaking as a Prerequisite for the Digital Twin Creation

Fluid Dynamics Calculation in SF6 Circuit Breaker during Breaking as a Prerequisite for the Digital Twin Creation

Measurement of radial temperature distributions of the blown CO2 arcs under different conditions

Study on Macroscopic Performance and Characteristics of DC Arc in Condition of Short Gap

Contact Info

Product

Resources

About

Arc Shape and Arc Temperature Measurements in SF₆ High-Voltage Circuit Breakers Using a Transparent Nozzle

Measurement of radial temperature distributions of the blown CO₂ arcs under different conditions