Results 21 to 30 of about 2,217,215 (210)
Energy Reports, 2023 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
doaj +1 more source
Study on lightning protection scheme of multi-terminal MMC-MVDC distribution system
High Voltage, 2020 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
Monitoring and Protection System for Overvoltage, Undervoltage and Unbalance Voltage
Jurnal ECOTIPE, 2022 The biggest loss in the industry that caused the industry to experience financial losses that should have been the target of achieving 90% - 100% production was a decrease of up to 40%, due to the production machines not running due to excessive loads ...
M. Saifudin, S. Suryono, Irianto Irianto
semanticscholar +1 more source
IEEE Access, 2021 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
doaj +1 more source
Analysis of Internal Overvoltages in Transformer Windings during Transients in Electrical Networks
Energies, 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
You-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]
Tekhnologiya 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
PROTECTION OF 35 KV OVERHEAD TRANSMISSION LINE FROM THE INDUCED LIGHTNING OVERVOLTAGE
Elektrotehnìka 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
Study the Line Length Impact on the Effective of Overvoltage Protection in the Low Voltage Network
, 2020 The overvoltage protection devices on low-voltage power lines (SPD) are often made using GDA and MOV technology. The selection, proper use and installation of overvoltage protective devices, taking into account the effect of line length and the types of ...
Lymeng Chi +3 more
semanticscholar +1 more source
Optimized Protection of Pole-Mounted Distribution Transformers against Direct Lightning Strikes
Energies, 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