Results 31 to 40 of about 17,363 (249)

Detection Method of Partial Discharge on Transformer and Gas-Insulated Switchgear: A Review

open access: yesApplied Sciences, 2023
The detection of partial discharge (PD) activities in high-voltage equipment can be conducted according to several mechanisms of signal detection, including electromagnetic wave signal detection, acoustic signal detection, chemical reactions, electrical ...
Zulbirri Faizol   +8 more
semanticscholar   +1 more source

Research on Near-Field Propagation Characteristics of Partial Discharge Electromagnetic Wave Signal in Switchgear

open access: yesEnergies, 2023
In the authors’ previous research, a new method for partial discharge detection in the switchgear based on near-field detection was proposed. The content of this paper is the continuation of the authors’ previous research.
Chunguang Suo   +6 more
doaj   +1 more source

Directions of Development of Diagnostic Methods of Vacuum Medium-Voltage Switchgear

open access: yesEnergies, 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 ...
P. Węgierek, Damian Kostyła, M. Lech
semanticscholar   +1 more source

Research on modularizing design of 10 kV switchgear with line outlet for live maintenance

open access: yesEnergy Reports, 2021
In order to improve the reliability and safety of power supply and reduce the failure rate of switchgear, this paper designs a novel high-voltage switchgear which is reliable and safe.
Yuan Yao   +4 more
doaj   +1 more source

The Impact of Coil Winding Angle on the Force of DC Solenoid Electromagnetic Actuator

open access: yesAdvances in Electrical and Electronic Engineering, 2019
This paper presents the research on the influence of coil parameter on the force of DC electromagnetic actuator. The coil parameter discussed in the paper is the angle between the windings.
Eduard Plavec   +2 more
doaj   +1 more source

Bi-Directional Power Flow in Switchgear with Static Transfer Switch Applied at Various Renewable Energies

open access: yesEnergies, 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

Partial Discharge Detection Technology for Switchgear Based on Near-Field Detection

open access: yesElectronics, 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

Research on temperature rise of high current switchgear in distribution system

open access: yesThe 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

Optimization on airflow distribution for anti-condensation of high-voltage switchgear using CFD method

open access: yesCase Studies in Thermal Engineering, 2021
High-voltage switchgear is indispensable for power system. Condensation of the switchgear occurs frequently due to water vapor infiltration and water accumulation in cable trench, which may cause large-scale blackout of the power system.
Xuejing Zheng   +6 more
doaj   +1 more source

Review of Medium-Voltage Switchgear Fault Detection in a Condition-Based Monitoring System by Using Deep Learning

open access: yesEnergies, 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

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