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Mechanical Fault Diagnosis of a High Voltage Circuit Breaker Based on High-Efficiency Time-Domain Feature Extraction with Entropy Features [PDF]
Entropy, 2020 The fault samples of high voltage circuit breakers are few, the vibration signals are complex, the existing research methods cannot extract the effective information in the features, and it is easy to overfit, slow training, and other problems.
Jiajin Qi, Xu Gao, Nantian Huang
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Investigation on the fault monitoring of high-voltage circuit breaker using improved deep learning. [PDF]
PLoS ONE, 2023 Mechanical faults are the main causes of abnormal opening, refusal operation, or malfunction of high-voltage circuit breakers. Accurately assessing the operational condition of high-voltage circuit breakers and delivering fault evaluations is essential ...
Hao Chen +5 more
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International Journal of Metrology and Quality Engineering, 2019 The development of power grid system not only increases voltage and capacity, but also increases power risk. This paper briefly introduces the feature extraction method of the vibration signal of high voltage circuit breaker and support vector machine ...
Li Long +4 more
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CFD Simulation of Transonic Flow in High-Voltage Circuit Breaker [PDF]
International Journal of Chemical Engineering, 2012 A high-voltage circuit breaker is an indispensable piece of equipment in the electric transmission and distribution systems. Transonic flow typically occurs inside breaking chamber during the current interruption, which determines the insulating ...
Xiangyang Ye, Mahesh Dhotre
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Gong-kuang zidonghua, 2016 Basic contents of on-line monitoring technologies of mechanical characteristics of high-voltage vacuum circuit breaker were introduced, and various kinds of methods of on-line monitoring were reviewed.
ZHAO Yang
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The Journal of Engineering, 2019 In order to reveal the process of insulation destruction of circuit breaker in GIS under lightning impulse voltage, a new method of transient insulation numerical analysis is described in this paper.
Wu Qi +3 more
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On the Stability of Perfluoroisobutyronitrile in High-Voltage Circuit Breaker: A Computational Study. [PDF]
ACS Omega2,3,3,3-Tetrafluoro-2-(trifluoromethyl) propanenitrile, also known as perfluoroisobutyronitrile (CF4-CN), is the main component of the so-called g3 gas mixture (C3F7CN-CO2-O2), a proven alternative to SF6 as an insulating gas in high-voltage circuit breakers.
Arif MB +4 more
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Research of Fault Diagnosis Method for High-voltage Circuit Breaker Based on Data Fusio
Gong-kuang zidonghua, 2010 In order to improve fault diagnosis level of high-voltage circuit breaker, the method of using D-S evidence theory to fuse data obtained by different types of sensors was researched and it was used in fault diagnosis for high-voltage circuit breaker ...
MIAO Hong-xia, WANG Hong-hua
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Research on the Difference Mechanism of High Voltage Circuit Breaker’s Opening/Closing Coil Current [PDF]
E3S Web of Conferences, 2021 High voltage circuit breakers are important protection and control equipment for the power grid. The defects and faults of the circuit breaker seriously affect the safety and stability of the power system.
Su Yi, Lu Yufeng, Zhang Lei, Rao Xiajin
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A Neural Network Based Response Model for High Voltage Circuit-Breaker Testing [PDF]
Advances in Electrical and Electronic Engineering, 2018 Innovative test methods for circuit breakers are constantly sought after to reduce maintenance time and costs, yet still provide accurate assessment of this critical substation equipment.
Wesley Doorsamy, Pitshou Bokoro
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