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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
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High current interruption in vacuum circuit breakers [PDF]
Proceedings of 17th International Symposium on Discharges and Electrical Insulation in Vacuum, 1997 The aim of this project was to find a correlation between contact gap length and switching behavior of a vacuum circuit breaker. A large number of interruption experiments were executed in a vacuum chamber with butt type contacts made of Cu, CuCr 50/50 and AgWC. The currents to be interrupted varied from 2.5 to 32 kA.
Binnendijk, M. +4 more
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Directions of Development of Diagnostic Methods of Vacuum Medium-Voltage Switchgear
Energies, 2023 The development of power grid infrastructure and increasingly stringent environmental regulations have intensified work, carried out by researchers and electrical equipment manufacturers, to develop innovative gas-insulated, environmentally neutral ...
Paweł Węgierek +2 more
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Energies, 2022 Transformers and circuit breakers are essential equipment in traction power supply systems. Once a fault occurs, it will affect the train’s regular operation and even threaten passengers’ personal safety. Therefore, it is essential to diagnose the faults
Zhensheng Wu +4 more
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CIRED - Open Access Proceedings Journal, 2017 In the last years the progressive increase of distributed and non-programmable energy sources arise the interest in the use of DC for medium-voltage distribution systems. The study focuses on the design considerations of the apparatus required to support the management and protection of these applications.
Lars Liljestrand +4 more
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Voltage transient management for Alternating Current trains with vacuum circuit breakers
IET Electrical Systems in Transportation, 2022 Alternating current power supplies and rolling stock with 25 kV (50 or 60 Hz) and 15 kV (16.7 Hz) traction systems do not have the characteristics and behaviour of a typical three‐phase medium‐voltage distribution system. Switching inductive loads with a
Thomas Moore +2 more
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Optimisation of commutation circuit parameters for DC vacuum circuit breakers
The Journal of Engineering, 2019 As the environmental problems caused by the consumption of the non-renewable fossil energy are getting increasingly serious, the new energy power generation has received wide attentions.
Deen Yu, Hai Chen, Wei Liu, Xiaoming Liu
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Development Process of Impulse Surface Flashover on Alumina Dielectrics in Vacuum [PDF]
, 2011 For higher electrical insulation performance of vacuum circuit breakers (VCB), the surface insulation characteristics in vacuum should be improved. In this paper, we investigated the development mechanism of impulse surface flashover on alumina ceramic ...
Kojima, Hiroki +4 more
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IET Generation, Transmission & Distribution, 2023 The objective of this paper is to determine the transient characteristics and sites of the pre‐breakdown (pre‐BD) in the spark conditioning under power frequency voltage (PFV) in vacuum.
Hui Ma +7 more
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Simulation study on modeling of vacuum arc characteristics and anode temperature rise in low-frequency vacuum interruption [PDF]
AIP AdvancesLow-frequency transmission technology has been widely used in medium- and long-distance electricity transmission scenarios such as offshore wind power transmission due to its advantages of low cost and strong ability to pool renewable energy.
Yanting Li +6 more
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