Results 21 to 30 of about 5,269 (164)
Sensors, 2021 This paper proposes a solution for the development of microclimate monitoring for Low Voltage/High Voltage switchgear using the PRTG Internet of Things (IoT) platform. This IoT-based real time monitoring system can enable predictive maintenance to reduce
Radu Fechet +2 more
doaj +1 more source
The Impact of Coil Winding Angle on the Force of DC Solenoid Electromagnetic Actuator
Advances 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
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Temperature distribution simulation in an MV switchgear bus bar chamber [PDF]
, 2022 Temperature is one of the main contributors for the decrease of switchgear insulation withstand capability and life expectancy. Unattended temperature rise can lead to overheating of switchgear insulation causing insulation breakdown and hence switchgear
Kearns, Martin +2 more
core
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
doaj +1 more source
, 2013 The thesis depicts the substation of low voltage switchgear design (nn) based on the back scheme of its connection. In the first part of the switchgear design nn the thesis deals with the adjustment of the back connection scheme and its analysis ...
Róža, Štefan
core +2 more sources
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
doaj +1 more source
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
doaj +1 more source