Results 11 to 20 of about 7,540 (299)

A Survey on Fault Clearing and Protection Technology of Power Electronic Transformer in Distribution Network

open access: yesKongzhi Yu Xinxi Jishu, 2017
Protection system for power electronic transformer is an important measure to ensure its safe and stable operation in engineering application. Firstly, taking AC-DC-AC type power electronic transformer as an example, this paper pointed out its topology ...
ZHOU Tingdong, XU Yonghai
doaj   +2 more sources

Power transformer protection

open access: yes, 2023
Transformatori su jedna od najkritičnijih i najskupljih komponenti svakog distribucijskog sustava. To je zatvoreni statički uređaj obično natopljen u ulje, pa su stoga kvarovi koji se javljaju na njemu ograničeni ali učinak nekog kvara može biti vrlo ...
Krmpotić, Sanjin
core   +2 more sources

Examples of power transformers testing after outages and bad results of the chemical analysis of the oil sample [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2023
Power transformers represent one of the most important components in terms of generation, transmission and distribution of electrical power. Precisely for this reason, it is necessary to pay some attention in terms of preventive electrical measurements ...
Milić Momčilo   +2 more
doaj   +1 more source

Transformer Monitoring and Protection in Dynamic Power Systems – A Review

open access: yesFrontiers in Energy Research, 2020
Increasing distributed energy resources, especially the renewable energy resources (RESs) are being installed across power systems these years. These RESs, including solar photovoltaic, wind turbines, etc., provide opportunities for operators to improve ...
Boqi Xie, Dongbo Zhao, Tianqi Hong
doaj   +1 more source

An Artificial Neural Network Developed in MATLAB-Simulink for Reconstruction a Distorted Secondary Current Waveform. Part 1

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2021
Recently, there has been an increased interest in the use of artificial neural networks in various branches of the electric power industry including relay protection.
Yu. V. Rumiantsev, F. A. Romaniuk
doaj   +1 more source

Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids

open access: yesEnergies, 2021
Ester liquids are environmentally friendly insulating oils, and they can be used as an alternative to mineral oil in transformers, even though in most countries spills of ester oils must be treated like spills of mineral oil.
Huaqiang Li   +5 more
doaj   +1 more source

Real-Time Monitoring & Adaptive Protection of Power Transformer to Enhance Smart Grid Reliability

open access: yesElectrical, Control and Communication Engineering, 2019
Power transformer is one of the most important pieces of equipment in the grid to reliably and efficiently transmit power to the consumers. Asset management and protection are the best concepts for prolongation of transformer lifespan as well as for the ...
Raichura Maulik   +2 more
doaj   +1 more source

Protecting power equipment against magnetohydrodynamic effects (MHD) of electromagnetic pulses (EMP) [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2015
The article is devoted to the effects of geomagnetic-induced currents (GIC) on electrical equipment of power systems and analyzes technical measures for protection against such effects.
Gurevich Vladimir
doaj   +1 more source

Power Transformers and Environmental Protection

open access: yesIFAC-PapersOnLine, 2016
Abstract: Power transformers are among the most expensive equipment installed in power plants and substations. Generally, they contain large quantities of combustible material which can, in the event of ignition, spread fire to adjacent installations.
Leoš Valenta   +2 more
openaire   +1 more source

Research on the structure and safety of transformer bushing tap adapter

open access: yesZhejiang dianli, 2022
Tap adapter is necessary in online monitoring of transformer bushings to induct current connected to bushing tap. In this paper, earthing structures of transformer bushings in one provincial power grid are investigated.
XIA Jian, ZUO Jie
doaj   +1 more source

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