Results 21 to 30 of about 341 (263)
IEEE Access, 2022 The vacuum degree of Vacuum Interrupter (VI) will deteriorate because of gases emitted by arc heat, and leakage through the joints. It is important to select an appropriate maintenance criteria for a VI by monitoring the vacuum degree.
Seungmin Bang +2 more
doaj +1 more source
Properties of Vacuum Arcs Generated by Switching RMF Contacts at Different Ignition Positions
Energies, 2020 The influence of initiation behavior of the drawn arc on the arc motion, on arc characteristics during the active phase, as well as on the post-arc parameters, was studied.
Sergey Gortschakow +6 more
doaj +1 more source
Experimental results from a Thomson-coil actuator for a vacuum interrupter in an HVDC breaker
The Journal of Engineering, 2019 Recent developments in high-voltage direct current transmission technology and the plans for multi-terminals motivate research efforts on the fast DC breaker.
Antoine Baudoin +6 more
doaj +1 more source
Breakdown of shield gaps in vacuum interrupters
High Voltage, 2021 The objective of this paper is to determine how the high‐voltage discharging metal vapour deposited on the nearby ceramic inner surface influences the breakdowns of gaps between centre shield and end shield in vacuum interrupters.
Weigang Feng +6 more
doaj +1 more source
DC Current Interruption Based on Vacuum Arc Impacted by Ultra-Fast Transverse Magnetic Field
Energies, 2020 In this paper, the effect of an external ultrafast transverse magnetic field (UFTMF) on a vacuum arc in the diffused mode has been studied. According to the results of studies, a novel approach for making a zero-crossing in a DC arc current has been ...
Ehsan Hashemi, Kaveh Niayesh
doaj +1 more source
Research status and prospect of vacuum degree detection methods for vacuum circuit breaker
Gong-kuang zidonghua, 2018 Research status of vacuum degree detection methods for vacuum circuit breaker was introduced including off-line detection methods such as observation method, power frequency withstand voltage method, pulsed magnetron discharge method and shield potential
WU Mengze +3 more
doaj +1 more source
Vacuum Switching Technology for Future of Power Systems
Engineering, 2022 Even though switching in vacuum is a technology with almost 100 years of history, its recent developments are still changing the future of power transmission and distribution systems.
Xiaofei Yao +5 more
doaj +1 more source
Energies, 2022 This paper presents the results of testing the electrical strength of an insulating system in a vacuum obtained from three noble gases: argon, neon, helium, and air. The breakdown voltages were measured for contact gaps of 1 mm and 2 mm. A difference was
Michał Lech, Paweł Węgierek
doaj +1 more source
3.6kV Vacuum Interrupter Design
Journal of Education, Teaching and Social Studies, 2023 This paper analyzes and compares the principle and structure of the vacuum interrupter, so as to determine the selection of materials for the vacuum interrupter, and further compares the structural materials of the interrupter, and compares them from three angles: the shell, the contact, and the shield.
openaire +1 more source
Energies, 2020 The prestrike phenomenon in vacuum circuit breakers (VCBs) is interesting but complicated. Previous studies mainly focus on the prestrike phenomenon in single-break VCBs. However, experimental work on prestrike characteristics of double-break VCBs cannot
Yun Geng +7 more
doaj +1 more source