Results 21 to 30 of about 4,987 (266)

Study of frequency domain dielectric properties of vegetable oil and mineral oil transformer

The Journal of Engineering, 2018
To study the properties of vegetable oil transformer, the mineral and vegetable insulation oil two transformers with the same parameters are studied using the frequency domain spectroscopy (FDS) method.
Linduo Li, Qiaolin Ren, Sa Xiao, Wenyan Yang, Wei Xiong, Boqiao Fu   +5 more
doaj   +1 more source

Experimental study of transformer oil explosion affected by a vertical steel plate [PDF]

AIP Advances
The transformer oil within the piping of ultra-high voltage converter transformers is prone to evaporation, forming a flammable oil–gas mixture. In the presence of an ignition source, an explosion of transformer oil can cause severe damage to the power ...
Yubiao Huang, Jiaqing Zhang, Lingxin He, Xianli Zhu   +3 more
doaj   +1 more source

Analysis of Influence of Moisture Content Ondielectric Properties of Transformer Oil after Aging

Journal of Harbin University of Science and Technology, 2020
Transformer oil is an important liquid insulating medium in oil-immersed power transformers，which has the functions of arc extinguishing，insulation and cooling.
JIA Hai-feng, LIU Ji, ZHANG Ming-ze, Lv Jia-lu, CHENG Wei-chao   +4 more
doaj   +1 more source

Estimation of Life Cycle of Distribution Transformer in Context to Furan Content Formation, Pollution Index, and Dielectric Strength

IEEE Access, 2021
Distribution transformer is the most vital component in the power system. Failure of a transformer leads to loss of revenue besides affecting the reliability of power supply to consumers.
Rajkumar Soni, Prasun Chakrabarti, Zbigniew Leonowicz, Micha Jasinski, Krzysztof Wieczorek, Vadim Bolshev   +5 more
doaj   +1 more source

Performance Comparison and Selection of Transformer Fluid

MATEC Web of Conferences, 2016
Transformer fluid directly affects the working state of the components and the cooling efficiency of transformer. There are three kinds of transformer fluid used for electric locomotive, EMU and suburban rail vehicles: mineral oil, silicone liquid and ...
Lu Yang, Liu Shi Jia
doaj   +1 more source

Simultaneous Production of Transformer Insulating Oil and Value-Added Glycerol Carbonates from Soybean Oil by Lipase-Catalyzed Transesterification in Dimethyl Carbonate

Energies, 2017
Fatty acid methyl esters (FAMEs), as a transformer insulating oil, and value-added glycerol derivatives were simultaneously synthesized from soybean oil by transesterification using Lipozyme 435 in dimethyl carbonate (DMC).
Keon Hee Kim, Eun Yeol Lee
doaj   +1 more source

Breakdown Voltage Characteristic Of Mineral Oil In Power Transformer 16 Mva Updl Semarang

Techno, 2020
The transformer is one of the most important equipment in the electric power system, which is to distribute power from power plants to the load centers by step-up or step down the voltage. Transformer is expect to have a high level of reliability. One
Setyo Adi Nugroho, Setyo Aji Priambodo
doaj   +1 more source

Evaluation Method of Aging State of Oil-Paper Insulation Based on Isothermal Decay Current

Journal of Harbin University of Science and Technology, 2023
The stable operation of the transformer is an important guarantee for maintaining the safety of the power grid. It is very important to accurately assess the insulation state of oil-paper insulation of transformer.
LIUHeqian, MENGFanhao, ZHANGJian, CHENShiyu, WANGLei, XUMinhu, ZHANGMingze   +6 more
doaj   +1 more source

ELECTRICAL POWER UNIT OF THE TRANSFORMER OIL CENTRIFUGAL CLEANING UNIT [PDF]

Avtomobilʹnyj Transport (Harʹkov), 2021
Problem. Cleaning transformer oil is one of the important engineering tasks, whose solution is associated with significant material and energy expenditure.
Hnatov Andrii, Arhun Shchasiana, Bagach Ruslan, Nechaus Andrii, Tarasova Valentina, Ruchka Oleksandr, Don Alla, Patlins Antons   +7 more
doaj   +1 more source

Methods of Humidityanalysis in Transformer Oil

Communications, 2010
To prevent failure states of transformer, we performed different types of measurements. We made measurements of a frequency dependence of capacity of test transformer immersed in tank with transformer oil.
Miroslav Gutten, Jozef Kudelcik
doaj   +1 more source