Results 21 to 30 of about 22,491 (267)

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

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

Temperature rise test and analysis of high current switchgear in distribution system

open access: yesThe 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
doaj   +1 more source

Superconducting fault current limiter application in a power-dense marine electrical system [PDF]

open access: yes, 2011
Power-dense, low-voltage marine electrical systems have the potential for extremely high fault currents. Superconducting fault current limiters (SFCLs) have been of interest for many years and offer an effective method for reducing fault currents.
Blair, Steven Macpherson   +5 more
core   +1 more source

Detecting Arcing Faults in Switchgear by Using Deep Learning Techniques

open access: yesApplied 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
doaj   +1 more source

Improving the Estimation of Partial Discharge Direction Using a Four-Terminal Surface Current Sensor

open access: yesEnergies, 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
doaj   +1 more source

Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum Interrupters

open access: yesEnergies, 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
doaj   +1 more source

Providing decision support for the condition-based maintenance of circuit breakers through data mining of trip coil current signatures [PDF]

open access: yes, 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

Simulation environment design for the investigation of damping and dewing mechanisms in the 12kV high-voltage switchgear

open access: yesE3S 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
doaj   +1 more source

Study on the operating characteristics of a compound automatic transfer switch based on forced current commutation

open access: yesThe 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
doaj   +1 more source

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