Results 21 to 30 of about 68,837 (305)

Methods of Humidityanalysis in Transformer Oil

open access: yesCommunications, 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

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

open access: yesJournal 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   +6 more
doaj   +1 more source

Design of Transformer Oil Temperature Intelligent Monitoring and Alarm System Based on PLC

open access: yesChemical Engineering Transactions, 2017
According to the requirements of the transformer oil product management system, the overall plan is designed, PLC is used as the next machine, and the distributed I/O system is built, based on the system software design transformer electrical schematic ...
Kun Zhang
doaj   +1 more source

Predicting transformers oil parameters

open access: yes2009 IEEE Electrical Insulation Conference, 2009
In this paper different configurations of artificial neural networks are applied to predict various transformers oil parameters. The prediction is performed through modeling the relationship between the transformer insulation resistance extracted from the Megger test and the breakdown strength, interfacial tension, acidity and the water content of the ...
Shaban, Khaled   +2 more
openaire   +2 more sources

A method of transformer top oil temperature forecasting based on similar day and similar hour

open access: yes电力工程技术, 2022
As the transformer top oil temperature is affected by many factors such as weather conditions and tidal current loads,it is difficult to improve the forecasting accuracy. To solve this problem,a method of transformer top oil temperature forecasting based
TAN Fenglei   +4 more
doaj   +1 more source

Analisis Kualitas Minyak Trafo Menggunakan Data Dissolved Gas Analysis dan Water Content

open access: yesProtek: Jurnal Ilmiah Teknik Elektro, 2018
Transformer is a vital equipment in the power system. If the transformer is damage, can cause the electrical distribution to the consumer will be disrupted. Therefore, it needs special maintenance the performance of the transformer to avoid damage.
Abdul Syakur, Fanny Rizka Savitri
doaj   +1 more source

Performance evaluation of transformer oil using uv-visible spectrophotometer

open access: yesActa Scientiarum: Technology, 2014
To ensure reliable operation of Power transformer, condition monitoring of transformer becomes obligatory. In this paper, condition assessment of transformer oil under various working conditions is performed using UV-visible spectrophotometer.
Radha Karthik   +2 more
doaj   +1 more source

Inversion of Oil-Immersed Paper Resistivity in Transformer Based on Dielectric Loss Factor

open access: yesIEEE Access, 2019
The aging of the transformer oil-paper insulation distributes spatially, which results in changes in paper resistivity in different regions. This paper establishes an iterative inversion algorithm using the finite element method to calculate the oil ...
Jiangjun Ruan   +5 more
doaj   +1 more source

Study on thermal model for calculating transformer hot Spot temperature [PDF]

open access: yes, 2011
A power transformer is a static piece of apparatus with two or more windings which, by electromagnetic induction, transforms a system of alternating voltage and current into another system of voltage and current usually of different values and at same ...
Ramadan Dofan, Jamal Ali
core  

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

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