A systematic review for switchgear asset management in power grids: condition monitoring, health assessment, and maintenance strategy

N Zhou, Y Xu, S Cho, CT Wee - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
Asset management process and techniques can improve the cost-efficiency, balance the
cost and risk, and prolong the service life of the aging switchgears in power grids, which …

Online condition assessment of interruption chamber of gas circuit breakers using arc voltage measurement

A Bagherpoor, S Rahimi-Pordanjani… - … on Power Delivery, 2016 - ieeexplore.ieee.org
As a key element of a power system, a circuit breaker (CB) requires regular maintenance.
Intelligent online condition assessment is increasingly becoming a requirement for key items …

Experimental study of arc erosion in gas-blasting and free-burning conditions in high-voltage circuit breakers

Y Zhou, J Humphries, J Spencer, J Yan - PLASMA PHYSICS AND …, 2023 - ojs.cvut.cz
Arc erosion behavior depends on varieties of factors, such as the shape and material of
contacts, the gas type and the pressure filled in the chamber. In this contribution …

Monitoring Erosion on Contacts of Medium-Voltage SF6 Circuit Breakers Using Contact Temperature

Z Zamani, MT Kejani, SH Khalkhali… - 2024 28th …, 2024 - ieeexplore.ieee.org
The power distribution network presents operational hurdles. Assessing active loss is pivotal
for efficiency, with circuit breakers essential for reliability. However, a greater number of …

基于改进CLAHE的SF6红外图像增**

刘陈瑶, 胡梦竹, 张龙飞 - Optical Technique, 2021 - opticsjournal.net
摘要针对六氟化硫(SF6) 红外图像对比度低, 纹理细节模糊而难以增**泄漏区域的问题,
提出了基于改进限制对比度的自适应直方图均衡化(CLAHE) 的SF6 红外图像增**算法 …

Criteria for successful short circuit current interruption on a real 245 kV 40/50 kA SF6 circuit breaker

M Muratovic, A Smajkic, KH Kim… - … on Electric Power …, 2015 - ieeexplore.ieee.org
Special attention needs to be given to the processes that occur in alternating current arcs at
the instant when the current naturally passes through a zero. The short interval of time …

Simulation and validation of pressure rise in a HV circuit breaker with SF6 and alternative interrupting media

B Bosovic, A Smajkic, M Muratovic… - … on Electric Power …, 2017 - ieeexplore.ieee.org
Superior characteristics of SF6 gas have enabled its successful use as the interruption
media in high voltage circuit breakers. Unique combination of physical properties considers …

Influence of the Shapes of Arcing Contacts on Prestrike Phenomenon in SF6 Circuit Breakers

O Homaee, A Gholami - IEEE Transactions on Plasma Science, 2019 - ieeexplore.ieee.org
Prestrike phenomenon in circuit breakers (CBs) can cause electromagnetic transients in
power systems. Therefore, the investigation of this phenomenon has considerable …

Universal approach to gas flow and pressure rise calculation in HV circuit breaker chambers

A Smajkic, A Hajdarovic, B Bosovic… - … on Electric Power …, 2017 - ieeexplore.ieee.org
Interruption of short circuit currents in high voltage circuit breakers requires high SF6 gas
pressure, which can be generated by compression of SF6 gas and/or energy transfer from …

Magnetic Signature of Vacuum Interrupters during Load Switching

N Guo, K Whitmore, M Cohen, T Shekari… - 2022 IEEE Electrical …, 2022 - ieeexplore.ieee.org
The investigation of the circuit breaker's magnetic field emission provides fundamental data
to estimate contact wear caused by the arc and perform magnetic field-based online …