Results 11 to 20 of about 19,778 (262)

Novel DC current interruption technology based on the instability of vacuum arc under composite transverse magnetic fields

open access: yesIET Generation, Transmission & Distribution, 2022
The objective of this work intends to propose a novel current interruption technology in vacuum for LVDC power systems, based on the instability of vacuum arc under composite transverse magnetic fields (TMFs).
Shaowei Liu   +5 more
doaj   +1 more source

Experimental research on arc characteristics for a 40.5-kV vacuum circuit breaker

open access: yesThe Journal of Engineering, 2019
With the proposal and development of the energy internet, the wind power generation techniques, the photovoltaic power generation and the fuel cell, the power generation technology has been further developed and applied on a large scale.
Xiaohan Zhan   +4 more
doaj   +1 more source

Modeling of mixing and interaction of multi-cathode spot vacuum arc jets

open access: yesAIP Advances, 2016
Vacuum arc consists of cathode spot and mixing zone, arc column and anode zone. The separate jets and the mixing zone should be considered in the model of diffuse arc.
Lijun Wang   +3 more
doaj   +1 more source

ABOUT POSSIBILITY OF ELIMINATION MICRODROPLETS OF VACUUM ARC OF INPUT ENERGY INTO THE ZONE OF THEIR TRANSPORTATION

open access: yesАвіаційно-космічна техніка та технологія, 2017
Briefly reviewed the known methods of reducing the amount of microdroplets in a vacuum arc coatings. It has been shown that they do not allow to completely eliminate the microdroplets of the plasma stream.
Юрий Александрович Сысоев
doaj   +1 more source

Correlation of radius of cathode spot of vacuum arc of metals on the size of generated droplets

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021
The simple relation to estimate the cathode spot radius of a vacuum arc of pure metals is obtained. On its basis, is established between the cathode spot radius and the size of droplets generated by the cathode spot a correlation.
G. V. Markov   +3 more
doaj   +1 more source

Research Progress on the Melting Process of Nickel-based Superalloy

open access: yesTeshugang, 2023
The melting method of nickel-based superalloy is the decisive factor related to the alloy quality. Vacuum induction melting can effectively control the content of O, N, H and other gases and harmful impurities in alloy ingots, and accurately control the ...
Yang Hao, Wang Fangjun, Li Cai, Wu Wei
doaj  

Overvoltages during switching operations of vacuum switching devices [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2013
This paper presents the results of experimental studies of voltage phenomena in the switching operations of vacuum switching devices made by various manufacturers in several different configurations of 6 kV, 10 kV, 20 kV and 35 kV networks.
Vukelja Petar   +3 more
doaj   +1 more source

Analysis and Research of the Electric Field in the Vacuum Arc Interrupter of a 31.5 kV Vacuum Circuit Breaker

open access: yesEnergies
The insulation performance of vacuum arc interrupters greatly affects the reliability of vacuum circuit breakers. Optimizing the electric field distribution of a vacuum arc interrupter can improve its insulation performance.
Naming Zhang   +5 more
doaj   +1 more source

Improving the Efficiency of Cutting Tools through Application of Filtered Cathodic Vacuum Arc Deposition Coating Techniques: A Review

open access: yesAdvances in Materials Science and Engineering, 2022
The challenge of enhancing cutting tool life has been dealt with by many research studies. However, this challenge seems endless with growing technological advancement which brings about incremental improvement in tool life.
Hailu Gemechu Benti   +2 more
doaj   +1 more source

Analysis of the Vacuum Arc Interruption Process in Aviation Intermediate-Frequency Power Supply Systems

open access: yesEnergies, 2017
In this paper, we present our research into the interruption performance of vacuum circuit breakers in aviation intermediate-frequency (360 Hz to 800 Hz) power supply systems. Intermediate-frequency vacuum arc experiments were carried out in interrupters
Yuan Jiang   +3 more
doaj   +1 more source

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