Results 21 to 30 of about 30,341 (295)
Partial Discharge Detection Technology for Switchgear Based on Near-Field Detection
Electronics, 2023 In view of the fact that the partial discharge (PD) signal energy is mainly concentrated below hundreds of megahertz, the ultra-high frequency part of the energy is weak, and the interior space of the switchgear is narrow, this paper proposes a new ...
Chunguang Suo +5 more
semanticscholar +1 more source
Energies, 2021 In this study, we describe the development of a plug-in type of switchgear that can control bidirectional power flow. This switchgear system can connect distributed generations such as photovoltaic and wind turbine generation, and AC and DC loads.
Keon-Woo Park, Chul-Hwan Kim
doaj +1 more source
Energies, 2022 In power energy distribution networks, switchgear is considered critical equipment. This is because the act of monitoring the operation and condition of switchgear, as well as performing the required corrective maintenance on any potentially problematic ...
Yaseen Ahmed Mohammed Alsumaidaee +5 more
semanticscholar +1 more source
Research progress on photoacoustic SF6 decomposition gas sensor in gas-insulated switchgear
Journal of Applied Physics, 2022 In the power industry, sulfur hexafluoride (SF6) as an insulating gas is widely used in gas-insulated switchgears (GISs). Owing to the latent inner insulation defects of GIS, various SF6 gas decompositions are generated in the process of partial ...
Xukun Yin +7 more
semanticscholar +1 more source
Temperature rise test and analysis of high current switchgear in distribution system
The Journal of Engineering, 2018 As the load of the power system continues to increase, the capacity of switchgear climbs, resulting in that the overheating problems becoming more serious.
Haotian Xia +7 more
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Temperature Field Simulation and Structure Improvement of 12kV Switchgear
Journal of Physics: Conference Series, 2022 Aiming at the heating problem of 12kV switchgear, the model of its main circuit module was established and simplified. Then, the temperature field and airflow field were simulated by finite element analysis software ANSYS.
Yanjie Zhao, Li’an Chen, Rui Qiao
semanticscholar +1 more source
Research and Application of Temperature Load of Switchgear
Journal of Physics: Conference Series, 2022 Abnormal changes in the temperature and load current of the high-current switchgear will directly affect the reliable operation of the equipment. In order to effectively monitor the temperature of the switchgear and ensure the reasonable arrangement of ...
Ruibo Yang +5 more
semanticscholar +1 more source
Research on temperature rise of high current switchgear in distribution system
The Journal of Engineering, 2019 With the increase of the load of the switchgear, the overheating of the switchgear is more and more serious. In this article, the authors give the primary heat sources in the electrical equipment.
Xiaorui Wang +8 more
doaj +1 more source
Research of Partial Discharge Monitoring for Switchgear Cabinet Based on LSSVM
MATEC Web of Conferences, 2016 Now, there are many influencing factors of partial discharge(PD) for switchgear cabinet, but very few methods used for switchgear cabinet monitoring. In this paper, Partial discharge of switchgear cabinet is identified based on Least Square SVM (LSSVM ...
Han Shai Gen +5 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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