Results 1 to 10 of about 244 (244)
Journal of Materials Research and Technology, 2023 Vacuum interrupters are important components to ensure the safety of medium and high-voltage power transmission, and contact material is an important factor affecting the performance of vacuum interrupters.
Jin-ru Han +3 more
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Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum Interrupters
Energies, 2021 This paper presents the results of a comparative analysis of the dielectric strength of disconnecting vacuum interrupters operating on air and helium. The breakdown voltage Ud was measured in the pressure range from 8.0 × 10−4 Pa to 3.0 × 101 Pa for air ...
Paweł Węgierek +3 more
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Pressure Monitoring in Medium-Voltage Vacuum Interrupters
Energies, 2023 Innovation in the economy is closely tied to energy development, encompassing the exploration of new energy sources, increased energy production efficiency, and the integration of diverse energy sources for safe and effective supply to industries and ...
Paweł Węgierek +4 more
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Metals, 2021 Contact materials in high-voltage vacuum interrupters require properties such as high conductivity, density and hardness to minimize arc heat damage. In this study, Cu–Cr–Mo alloy contact materials were examined for their usage as high-voltage contact ...
Yeong-Woo Cho +7 more
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IET 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
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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
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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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Effect of Cr@RGO structure on microstructure and properties of RGO/CuCr25 composite
Materials Research Express, 2021 CuCr alloy with high Cr content (20–50 wt.%) is the main contact material for medium voltage and high current vacuum interrupters. However, the influence of network distribution of Cr particles affect the conductivity of CuCr alloy, and its properties ...
Jinfeng Leng +5 more
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Journal of Materials Research and Technology, 2023 CuCr alloys are the main contact materials used in medium-voltage and high-current vacuum interrupters. In this paper, the effect of large plastic deformation on microstructure and the transverse/longitudinal thermal conductivity of CuCr30 contact ...
Xiuhua Guo +5 more
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Journal of Materials Research and Technology, 2023 CuCr30 composite was commonly applied in medium and low voltage vacuum interrupters. The WC/CuCr30 composites based on changing of Cr particle morphology and orientation were successfully prepared by vacuum hot press sintering and hot extrusion, and the ...
Kaiyue Duan +7 more
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