Results 11 to 20 of about 934 (179)
Generator step up transformer overvoltage protection in EPS power plants [PDF]
This paper presents the current state of the overvoltage protection of generator transformers in power plants of the Power Company of Serbia (EPS) and gives a critical overview of their overvoltage protection.
Mrvić Jovan +2 more
doaj +1 more source
The paper aims to analyze the parameters of prototypes of new overvoltage protection devices for power grids—a multi-chamber insulator arrester (MCA) and a long flashover arrester (LFA). The article presents the research results on determining the actual
Michał Borecki, Maciej Ciuba
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Insulator fault feature extraction system of substation equipment based on machine vision
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang +4 more
wiley +1 more source
Overvoltage is a critical problem of Thailand’ distribution system. The electrical protection device in the distribution system needs to be able to support this level of overvoltage.
Chaiyaporn Lothongkam +2 more
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Study on lightning protection scheme of multi-terminal MMC-MVDC distribution system
Based on a ±10 kV three-terminal MMC-MVDC (medium voltage DC distribution system based on modular multilevel converter) system, in this study, the authors mainly study on the influencing factors and protection schemes of the lightning intruding ...
Yuqun Gao +7 more
doaj +1 more source
In this study, a LCC-VSC hybrid HVDC transmission system was taken as an example. The valve and neutral overvoltage of the hybrid HVDC system were simulated and then calculated at the VSC converter station by installing a blocking diode and a DC circuit ...
Wang Dongju, Zhou Hao
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Analysis of Internal Overvoltages in Transformer Windings during Transients in Electrical Networks
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
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
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Electrical properties of photogalvanic element with built-in posistor layer based on polymer nanocomposite with carbon filler [PDF]
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
PROTECTION OF 35 KV OVERHEAD TRANSMISSION LINE FROM THE INDUCED LIGHTNING OVERVOLTAGE
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

