Results 21 to 30 of about 19,317 (224)

Thyristor Arc Eliminator for Protection of Low Voltage Electrical Equipment

open access: yesEnergies, 2019
The paper presents the layout of two opposing thyristors working as an Arc Eliminator (AE). The presented solution makes it possible to protect an electrical apparatus against the effects of an arcing fault.
Karol Nowak   +2 more
doaj   +1 more source

Solidifying Power Electronics [Historical] [PDF]

open access: yes, 2018
More than one century ago, in 1902, American engineer Peter Cooper Hewitt (1861\u20131921) derived the mercury arc-rectifier, enclosed in a glass bulb, from his mercury-vapor lamp of the previous year.
Guarnieri, Massimo
core   +1 more source

Subsidiary capability upgrading and parent-subsidiary relationship: insights from a Chinese acquisition in the UK [PDF]

open access: yes, 2015
Purpose: - This study aims to explore capability upgrading of EMNE’s subsidiaries in developed countries and how the parent-subsidiary relationship influences such upgrading.
Birkinshaw J.   +3 more
core   +1 more source

High Power Semiconductor Technology Status and Progresses

open access: yes机车电传动, 2021
The evolution of modern Si based high power semiconductor devices and recent progress of novel device structures,as well as the status of wide bandgap semiconductor materials and devices were presented in this paper.
Guoyou LIU   +5 more
doaj  

Review on Failure Mode and Mechanism of Press-Pack IGBT and Thyristor Devices

open access: yesZhongguo dianli, 2023
High voltage and large capacity press-pack insulated gate bipolar transistor (IGBT) devices and thyristor devices are the core devices in high-voltage DC transmission projects, which are of great significance for the efficient use of energy.
Haoze LUO   +5 more
doaj   +1 more source

The Control of Fluxes of Electric Power in Networks by Means of Phase-switching Booster Transformers [PDF]

open access: yesProblems of the Regional Energetics, 2016
roblems of increasing the efficiency of the operation of electrical networks based on the utilization of booster transformers (BT) with electronic control, applied on the base of active elements in smart electric grids of power systems and giving the ...
Govorov F.P.   +2 more
doaj  

Numerical Studies on the Performance of the PCM Mesh-Finned Heat Sink Base on Thermal-Flow Multiphysics Coupling Simulation

open access: yesEnergies, 2020
Operating temperature is an important parameter of thyristors to ensure the stable operation of power electronic devices. Thermal management technology is of great significance for improving the reliability of thyristors.
Jiefeng Liu   +5 more
doaj   +1 more source

Research on Control Strategy of Electronic Switch Neutral Section Passing Equipment

open access: yesKongzhi Yu Xinxi Jishu, 2020
With continuous development of China’s railway transportation technology, ground neutral section passing equipment has been widely used. However, ground neutral section passing equipment based on circuit breaker has the problems of short service lifetime
LIU Yongli   +3 more
doaj  

RESEARCH EMERGENCY TRANSIENTS IN POWER SYSTEMS 6 - 10 KV WITH THE THYRISTOR SWITCHES

open access: yesВестник Северо-Кавказского федерального университета, 2022
The conditions and the algorithms of thyristor switches to improve the reliability of power supply system 6 - 10 kV (SES) in emergency conditions: when power interruptions and short circuits (a short circuit).
Yuri Dyomin, Oleg Kirkorov
doaj  

All-Monolithically Integrated Self-Scanning Addressable VCSEL Array for 3D Sensing

open access: yesPhotonics, 2023
We propose an all-monolithically integrated self-scanning addressable vertical-cavity surface-emitting laser array for time-of-flight measurement. Some advantages of addressable VCSELs for ToF measurement applications include large reductions in power ...
Takashi Kondo   +8 more
doaj   +1 more source

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