Method of Evaluating Dielectric Interruption Capability of High-Voltage Circuit Breaker

Terada, Mamoru; Urai, Hajime; Ishikawa, Masanori; Shiraishi, Kimio; Sakuyama, Toshiaki; Kotsuji, Hideyuki; Kuroda, Mami; Ishii, Tatsuya; Yokomizu, Yasunobu

doi:10.1109/tpwrd.2021.3140200

Cited by 5 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The meshes were constructed to achieve both accuracy and computation time, considering dynamic re-meshing and the moving boundary reflecting the operating characteristics. In addition, the calculation results were validated in terms of pressure inside the thermal and mechanical puffer chambers, as described in our earlier work [25].…”

Section: Calculation Space and Conditionsmentioning

confidence: 99%

Comparison of measurement and numerical calculation on spectral profile of ablation arc plasma around current zero in high-voltage gas circuit breakers

Sakuyama

Kobayashi

Ishikawa

et al. 2023

J. Phys. D: Appl. Phys.

Self Cite

View full text Add to dashboard Cite

A product-scale interrupter with a rated voltage range of 245 kV to 362 kV and current condition of 20 kA root mean square has been examined to study the arc extinguishing process and the appearance of absorption spectrum by C2 molecules immediately before the current zero. The latter has elucidated the presence of C2 molecules outside the arc core, where the temperature is lower. The temporal behaviour of the C2 absorption spectrum and the emission spectrum of the S+ ion have been measured, which have indicated that PTFE ablation gas is replaced by SF6 because of gas flow from the thermal puffer chamber to the stagnation point. The computed spectra agree well with the experimentally obtained spectra and show similarities to measured profiles. They show evidence of absorption by C2 molecules in the continuous spectrum and the reproduced band heads of the C2 Swan spectrum.

show abstract

Section: Calculation Space and Conditionsmentioning

confidence: 99%

Comparison of measurement and numerical calculation on spectral profile of ablation arc plasma around current zero in high-voltage gas circuit breakers

Sakuyama

Kobayashi

Ishikawa

et al. 2023

J. Phys. D: Appl. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…When the current exceeds the rated value or a fault occurs, the protection unit will detect an abnormal situation and send a signal to the triggering mechanism [2]. The triggering mechanism transmits the triggering signal to the main body of the circuit breaker, enabling it to quickly disconnect the circuit to protect electrical equipment and systems from overload, short circuits, and other faults [3]. At the same time, the arc extinguishing system will eliminate the arc generated when the contact is disconnected.…”

Section: Introductionmentioning

confidence: 99%

Design of fault degree diagnosis algorithm for circuit breaker spring based on fuzzy clustering

Zhang,

Ying,

Wang

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

This paper proposes a design of a fault diagnosis algorithm for circuit breaker springs based on fuzzy clustering. The features of the fault state signal are extracted by combining the methods of Intrinsic Time-Scale Decomposition and Singular Spectrum Analysis. Using the fuzzy clustering method, this study classifies circuit breaker spring faults, extracts fault features, and achieves fault degree diagnosis. The experimental results show that the algorithm has high accuracy in fault diagnosis.

show abstract

Engineering Evaluation Method for the Breaking Capacity of Circuit Breakers under Excessive DC Component of Short-circuit Current

Wang,

Peng,

Chen

et al. 2024

2024 7th International Conference on Energy, Electrical and Power Engineering (CEEPE)

View full text Add to dashboard Cite

Method of Evaluating Dielectric Interruption Capability of High-Voltage Circuit Breaker

Cited by 5 publications

References 19 publications

Comparison of measurement and numerical calculation on spectral profile of ablation arc plasma around current zero in high-voltage gas circuit breakers

Comparison of measurement and numerical calculation on spectral profile of ablation arc plasma around current zero in high-voltage gas circuit breakers

Design of fault degree diagnosis algorithm for circuit breaker spring based on fuzzy clustering

Engineering Evaluation Method for the Breaking Capacity of Circuit Breakers under Excessive DC Component of Short-circuit Current

Contact Info

Product

Resources

About