Results 21 to 30 of about 2,108,671 (167)

Analysis of Internal Overvoltages in Transformer Windings during Transients in Electrical Networks

open access: yesEnergies, 2020
Due to the increasing requirements for the reliability of electrical power supply and associated apparatus, it is necessary to provide a detailed analysis of the overvoltage risk of power transformer insulation systems and equipment connected to their ...
Jakub Furgał   +2 more
doaj   +1 more source

Influence of power tower grounding on adjacent oil and gas pipelines

open access: yesYou-qi chuyun, 2021
In order to study the influence of electrical power towers on the nearby natural gas pipelines and the protective measures when lightning strikes power towers, a power line and natural gas pipeline model was established with the professional lightning ...
Le LIU   +5 more
doaj   +1 more source

Electrical properties of photogalvanic element with built-in posistor layer based on polymer nanocomposite with carbon filler [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2020
The study considers the problem of preventing overheat and thermal breakdown of a photovoltaic cell when a high reverse voltage is applied to its p—n junction.
Ivanchenko A. V., Tonkoshkur A. S.
doaj   +1 more source

Addressing Overvoltage Protection for High Voltage Loads [PDF]

open access: yes, 2016
In most of the electrical systems mainly the damage is caused by overvoltage and excess current. This paper addresses the methods and issues related with the overvoltage protection for high voltage loads.
, Shahera S. Patel
core   +1 more source

PROTECTION OF 35 KV OVERHEAD TRANSMISSION LINE FROM THE INDUCED LIGHTNING OVERVOLTAGE

open access: yesElektrotehnìka ta Elektroenergetika, 2018
Purpose. Develop recommendations for determining the optimal places for the installation of nonlinear overvoltage limiters for the protection of overhead transmission lines from the influence of lightning overvoltage on the basis of the model of the ...
V. V. KYRYK, S. A. ABDULAIEV
doaj   +1 more source

Optimized Protection of Pole-Mounted Distribution Transformers against Direct Lightning Strikes

open access: yesEnergies, 2020
Direct lightning strikes on overhead phase conductors result in high overvoltage stress on the medium voltage (MV) terminals of pole-mounted transformers, which may cause considerable damage.
Mahdi Pourakbari-Kasmaei   +2 more
doaj   +1 more source

Protection against lightning and overvoltage

open access: yes, 2005
Tato bakalářská práce se zabývá ochranou technických prostředků pro ochranu majetku před bleskem a přepětím. V práci jsou uvedeny legislativní podmínky pro použití přepěťových ochran.
Horák, Martin
core   +2 more sources

Infinite Functional Versatility, Formidable Limits: Evaluating Gallium‐Based Liquid Metals in Rechargeable Batteries

open access: yesCarbon Energy, EarlyView.
Beyond the hype surrounding the self‐healing properties of gallium‐based liquid metals (Ga‐LMs), this perspective critically examines their functional roles in metal‐ion batteries, highlighting both their underlying merits and the often‐overlooked challenges, including non‐representative design and testing configurations, performance overestimations ...
Turly P. P. Sumanasekara   +7 more
wiley   +1 more source

Research on the Lightning Intruding Overvoltage and Protection Measures of 500 kV AC Fault Current Limiter

open access: yesEnergies, 2019
As one of the key technologies to solve the problem of high short-circuit current, the fault current limiter (FCL) has become a research hotspot in China and abroad.
Changfu Chen   +8 more
doaj   +1 more source

Study of the waves propagation of lightning overvoltage impulse in the catenary system of electrified railways

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2022
Introduction. The article is devoted to the study of the waves propagation of lightning overvoltage impulse in the catenary system of electrified railways.
K. S. Belomestnykh   +3 more
doaj   +1 more source

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