Results 31 to 40 of about 22,263 (253)
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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Providing decision support for the condition-based maintenance of circuit breakers through data mining of trip coil current signatures [PDF]
, 2007 The focus of this paper centers on the condition assessment of 11kV-33kV distribution circuit breakers from the analysis of their trip coil current signatures captured using an innovative condition monitoring technology developed by others.
Campbell, A. +4 more
core +1 more source
Detecting Arcing Faults in Switchgear by Using Deep Learning Techniques
Applied Sciences, 2023 Switchgear and control gear are susceptible to arc problems that arise from slowly developing defects such as partial discharge, arcing, and heating due to faulty connections. These issues can now be detected and monitored using modern technology.
Yaseen Ahmed Mohammed Alsumaidaee +7 more
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Improving the Estimation of Partial Discharge Direction Using a Four-Terminal Surface Current Sensor
Energies, 2023 To improve the insulation diagnosis of a medium-voltage (MV) switchgear, we have developed a four-terminal surface current sensor and a method to estimate the direction of partial discharge occurrence.
Yasutomo Otake, Hiroshi Murase
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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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E3S Web of Conferences, 2018 The phenomenon of dampness and dewing inside the switchgear can improve the occurrence of serious equipment faults. Based on it, this paper, starting from the occurrence mechanism of dampness and dewing of the switchgear, summarizes the main techniques ...
Pan Qize +4 more
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High Voltage, 2019 High-voltage direct current circuit breakers (HVDC CB) are one of the key technologies of multi-terminal DC systems and DC grids. Different from other equipment that use a large number of power electronic devices, the HVDC CB cannot obtain its power from
Xiangyu Zhang +7 more
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Study on voltage characteristics of short air arc with high current density arc root
AIP Advances, 2019 In this paper, the voltage characteristics of short air arc with high average current density arc root were studied at atmospheric pressure. Cu-W electrodes with diameter of 5-14mm and gap length of 0.2-3 mm were used in the experimental study.
Tiansheng Zhu +4 more
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The Journal of Engineering, 2019 The automatic transfer switch can solve the problem of voltage drop and instantaneous power interruption, which is one of the most reliable and economical ways to improve the reliability and quality of the power supply.
Qu Lu +5 more
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Gong-kuang zidonghua, 2014 The paper introduced basic principle, detection and determinants of partial discharge detection method based on a combination method of ultrasound and high-frequency current.
LUO Dongsong, LU Ye
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