Author : Herbert G. Erdman
Publisher : ASTM International
Page : 151 pages
File Size : 29,53 MB
Release : 1988
Category : Electric insulators and insulation
ISBN : 0803111797
Contains papers presented at the symposium of the same name held in Bal Harbour, Fla., Oct. '87. A useful review. Annotation copyright Book News, Inc. Portland, Or.
Author :
Publisher :
Page : 16 pages
File Size : 10,59 MB
Release : 1916
Category : Electric insulation and insulation
ISBN :
Author : U. Mohan Rao
Publisher : John Wiley & Sons
Page : 387 pages
File Size : 44,74 MB
Release : 2021-12-01
Category : Science
ISBN : 1119800188
A comprehensive reference and guide on the usage of the alternative dielectric fluids for transformer insulation systems Liquid-filled transformers are one of the most important and expensive components involved in the transmission and distribution of power to industrial and domestic loads. Although petroleum-based insulating oils have been used in transformers for decades, recent environmental concerns, health and safety considerations, and various technical factors have increased the need for new alternative and biodegradable liquids. Alternative Liquid Dielectrics for High Voltage Transformer Insulation Systems is an up-to-date reference and guide on natural and synthetic ester-based biodegradable insulating liquids. Covering the operational behavior, performance analysis, and maintenance of transformers filled with biodegradable insulating liquids, this comprehensive resource helps researchers and utility engineers expand their knowledge of the benefits, challenges, and application of ester-filled transformers. In-depth chapters written by experienced researchers addresses critical topics including transformer condition monitoring, high voltage insulation testing, biodegradable insulating material processing and evaluation, and more. A unique and significant contribution to existing literature on the subject, this authoritative volume: • Covers condition monitoring, diagnostic testing, applications, maintenance, and in-service experiences • Explores current challenges and future prospects of ester-filled transformers • Discusses significant research progress and identifies the topics in need of further emphasis • Compares the differences and similarities between mineral oils and ester liquids • Includes in-depth behavioral observations and performance analysis of ester-based insulating liquids Alternative Liquid Dielectrics for High Voltage Transformer Insulation Systems: Performance Analysis and Applications is a must-have reference for utility engineers, electrical power utilities, transformer owners, manufacturers, and researchers.
Author :
Publisher : ASTM International
Page : 469 pages
File Size : 26,39 MB
Release : 1994
Category : Dielectrics
ISBN :
Author : Tapan Kumar Saha
Publisher : John Wiley & Sons
Page : 492 pages
File Size : 43,86 MB
Release : 2017-08-28
Category : Science
ISBN : 1119239966
A one-stop guide to transformer ageing, presenting industrially relevant state-of-the-art diagnostic techniques backed by extensive research data Offers a comprehensive coverage of transformer ageing topics including insulation materials, condition monitoring and diagnostic techniques Features chapters on smart transformer monitoring frameworks, transformer life estimation and biodegradable oil Highlights industrially relevant techniques adopted in electricity utilities, backed by extensive research
Author : Doaa I. Osman
Publisher : LAP Lambert Academic Publishing
Page : 188 pages
File Size : 28,74 MB
Release : 2014-09-01
Category :
ISBN : 9783845422183
Insulating oil is oil that stable at high temperatures and has excellent electrical insulating properties. It is used in oil-filled transformers, some types of high voltage capacitors, and some types of high voltage switches and circuit breakers. Its functions are to insulate, suppress corona and arcing, and to serve as a coolant. Today, most transformers use a fluid that achieves a much higher performance level than standard naphthenic mineral oil with far less risk. Mineral oils invariably have an issue with corrosive sulphur that can render them problematic in service, and attempts to balance this out with copper passivators are insufficient compared to readily-available, safer alternatives
Author : Bálint Németh
Publisher : Springer Nature
Page : 1556 pages
File Size : 11,23 MB
Release : 2019-10-31
Category : Technology & Engineering
ISBN : 3030316807
High voltage engineering is extremely important for the reliable design, safe manufacture and operation of electric devices, equipment and electric power systems. The 21st International Symposium on High Voltage Engineering, organized by the 90 years old Budapest School of High Voltage Engineering, provides an excellent forum to present results, advances and discussions among engineers, researchers and scientists, and share ideas, knowledge and expertise on high voltage engineering. The proceedings of the conference presents the state of the art technology of the field. The content is simultaneously aiming to help practicing engineers to be able to implement based on the papers and researchers to link and further develop ideas.
Author : Behrooz Vahidi
Publisher : Springer
Page : 107 pages
File Size : 14,77 MB
Release : 2019-05-27
Category : Technology & Engineering
ISBN : 3030196933
This book focuses on oil-paper insulation included in power transformers, especially for EHV and UHV transformers. The importance on insulation ever increased due to a growing voltage rating of transformers. Within the last decades, although research on the transformer insulation and diagnosis methods has advanced a lot, the insulation of HV transformers remained more or less unchanged. The book is divided into five chapters; the first and second chapters explain the basics of oil insulation, while the third chapter focuses on paper insulation. The final two chapters deal with the methods and outcome of testing both techniques. The primary target audience for this book is graduate students and power system engineers.
Author : Mahshid Farzaneh Dehkordi
Publisher :
Page : pages
File Size : 20,94 MB
Release : 2014
Category :
ISBN :
Liquid insulation, a key element in the transmission and distribution of electric power, guarantees safe operation from power transformers, cables, circuit breakers etc. by successfully transferring heat from the equipment as well as acting as the electrical insulating medium. In liquid insulation, mineral oil is widely used as an insulating medium in power industries. In the first part of this research project the impact of the aging of mineral oil on partial discharge is investigated as well as on other chemical and physical properties. For different accelerated aging times, different experiment are set up so that the aforementioned impact is measured along with several other parameters. Investigations are also performed on new oil to provide baseline comparison. The aim of this part of the research is to find relationships between partial discharge inception voltage (PDIV) and the other parameters of oil to do a suitable interpretation between them during aging time. Recently, interest has been growing in enhancing the insulating properties of mineral oil by adding nanoparticles. The literature survey revealed the promising impact of TiC>2 nanoparticles. In the second part of this project, the dielectric performance of mineral oil was therefore investigated by adding different concentrations of TiO2 nanoparticles (from 0.003 g/ml to 0.01 g/ml) using ultrasonic methods. All the investigation tests were performed at different temperatures ranging from -47 to 47°C to correspond with environmental temperature changes in Canada. The results were compared in terms of breakdown and dielectric properties, such as permittivity and resistivity.
Author : New York Public Library
Publisher :
Page : 88 pages
File Size : 44,87 MB
Release : 1927
Category : Electric insulators and insulation
ISBN :
