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Author: L. G. Christophorou
Publisher:
ISBN: 9780160608698
Category : Global warming
Languages : en
Pages : 44
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Book Description
The electric power industry's preferred gaseous dielectric (besides air), sulfur hexafluoride (SF6), has been shown to be a greenhouse gas. In this report we provide information that is useful in identifying possible replacement gases, in the event that replacement gases are deemed a reasonable approach to reducing the use of SF6 in high voltage electrical equipment. The report focuses on the properties of SF6 as a dielectric gas and on the data available for possible alternatives to pure SF6 (i.e., SF6 alone). On the basis of published studies and consultation with experts in the field, it was attempted to identify alternative dielectric gases to pure SF6 for possible immediate or future use in existing or modified electrical equipment. The possible alternative gases are discussed as three separate groups: (i) mixtures of SF6 and nitrogen for which a large amount of research results are available; (ii) gases and mixtures (e.g. pure N2, low concentrations of SF6 in N2, and SF6-He mixtures) for which a smaller yet significant amount of data are available; (iii) potential gases for which little experimental data are available.
Author: L. G. Christophorou
Publisher:
ISBN: 9780160608698
Category : Global warming
Languages : en
Pages : 44
Get Book
Book Description
The electric power industry's preferred gaseous dielectric (besides air), sulfur hexafluoride (SF6), has been shown to be a greenhouse gas. In this report we provide information that is useful in identifying possible replacement gases, in the event that replacement gases are deemed a reasonable approach to reducing the use of SF6 in high voltage electrical equipment. The report focuses on the properties of SF6 as a dielectric gas and on the data available for possible alternatives to pure SF6 (i.e., SF6 alone). On the basis of published studies and consultation with experts in the field, it was attempted to identify alternative dielectric gases to pure SF6 for possible immediate or future use in existing or modified electrical equipment. The possible alternative gases are discussed as three separate groups: (i) mixtures of SF6 and nitrogen for which a large amount of research results are available; (ii) gases and mixtures (e.g. pure N2, low concentrations of SF6 in N2, and SF6-He mixtures) for which a smaller yet significant amount of data are available; (iii) potential gases for which little experimental data are available.
Author: V. N. Maller
Publisher: Elsevier
ISBN: 1483157652
Category : Technology & Engineering
Languages : en
Pages : 292
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Book Description
Advances in High Voltage Insulation and Arc Interruption in SF6 and Vacuum deals with high voltage breakdown and arc extinction in sulfur hexafluoride (SF6) and high vacuum, with special emphasis on the application of these insulating media in high voltage power apparatus and devices. The design and developmental aspects of various high voltage power apparatus using SF6 and high vacuum are highlighted. This book is comprised of eight chapters and opens with a discussion on electrical discharges in SF6 and high vacuum, along with the properties and handling of SF6 gas. The following chapters focus on high voltage breakdown and arc interruption in SF6 and in vacuum; various types of SF6 gas insulated circuit breakers and metal enclosed switchgear, together with their design considerations; and application of SF6 gas in some insulated equipments. The final chapter addresses the various problems relating to the development of vacuum switchgear and considers some solutions that led to the successful development of vacuum interrupters of acceptable quality. This monograph will be of direct use to engineers in industry and those with electricity supply and utility establishments, as well as graduate students and research workers who want to familiarize themselves with the investigations and the results on the various phenomena relating to SF6 and high vacuum and their practical applications.
Author: L. G. Christophorou
Publisher:
ISBN:
Category : Gases
Languages : en
Pages : 44
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Book Description
The electric power industry's preferred gaseous dielectric (besides air), sulfur hexafluoride (SF6), has been shown to be a greenhouse gas. In this report we provide information that is useful in identifying possible replacement gases, in the event that replacement gases are deemed a reasonable approach to reducing the use of SF6 in high voltage electrical equipment. The report focuses on the properties of SF6 as a dielectric gas and on the data available for possible alternatives to pure SF6 (i.e., SF6 alone). On the basis of published studies and consultation with experts in the field, it was attempted to identify alternative dielectric gases to pure SF6 for possible immediate or future use in existing or modified electrical equipment. The possible alternative gases are discussed as three separate groups: (i) mixtures of SF6 and nitrogen for which a large amount of research results are available; (ii) gases and mixtures (e.g. pure N2, low concentrations of SF6 in N2, and SF6-He mixtures) for which a smaller yet significant amount of data are available; (iii) potential gases for which little experimental data are available.
Author: L. G. Christophorou
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: L. G. Christophorou
Publisher: Forgotten Books
ISBN: 9780365685227
Category : Technology & Engineering
Languages : en
Pages : 62
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Book Description
Excerpt from Gases for Electrical Insulation and Arc Interruption: Possible Present and Future Alternatives to Pure Sf₆ Intrinsic properties are those properties of a gas which are inherent in the physical atomic or molecular structure of the gas. These properties are independent of the application or the environment in which a gas is placed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Loucas G. Christophorou
Publisher: Springer Science & Business Media
ISBN: 1461548993
Category : Technology & Engineering
Languages : en
Pages : 600
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Book Description
Gaseous Dielectrics VIII covers recent advances and developments in a wide range of basic, applied, and industrial areas of gaseous dielectrics.
Author: M. S. Naidu
Publisher: I. K. International Pvt Ltd
ISBN: 8190694294
Category : Electric substations
Languages : en
Pages : 235
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Book Description
The increase in demand for electricity and the growing energy density in metropolitan cities have made it necessary to extend the existing high voltage network right up to the consumer. Stepping down the voltage from transmission to the distribution level at the substations located near the actual consumers not only yields economic advantages, but also ensures reliable power supply. Such substations are required to meet a number of severe requirements, including small installation size, effective protection against atmospheric pollution and moisture, noiseless operation, nonexplosive and flame resistant, reduced maintenance, minimal radio interference while providing excellent electric characteristics. Conventional substations using atmospheric air as the main dielectric cannot satisfy these requirements, but totally enclosed substations using sulphur hexafluoride (SF6) gas insulation that are also known as Gas Insulated Substations (GIS). GIS is now in widespread use in the electrical power industry, especially in metropolitan areas. This book will serve as a valuable reference for the novice as well as the expert who needs a wider and detailed scope of coverage within the area of GIS. Gas Insulated Substations provides a comprehensive coverage of a wide range of topics which include: * Introduction to GIS & Properties of SF6 * Layout, Design, Construction, Testing & Maintenance of GIS * Special Problems and Diagnostic Techniques * VFTO Phenomena and its Effects in GIS * Service Experience * Standards Specifications * Future Trends * Extensive References Gas Insulated Substations (GIS) is the first single source for authoritative information on the state of the art in GIS.
Author: Loucas C. Christophorou
Publisher: Springer Science & Business Media
ISBN: 144198979X
Category : Science
Languages : en
Pages : 507
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Book Description
The book contains a broad and in depth review by leading world experts of the progress and the problems of current interest in gaseous dielectrics and their use, especially as insulators in high-voltage equipment and substations. Recent advances in superconductivity for power transmission and in plasma technology are also included. The fundamental, applied and industrial research described in the book allows the electric power industry to transmit and distribute electrical energy in more efficient, safe and environmentally acceptable ways.
Author: Xuzhu Dong
Publisher: Springer Nature
ISBN: 9819974054
Category : Technology & Engineering
Languages : en
Pages : 682
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Book Description
This book includes original, peer-reviewed research papers from the 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023), held in Wuhan, China. The topics covered include but are not limited to: insulation, discharge computations, electric power equipment, and electrical materials. The papers share the latest findings in the field of insulation and discharge computations of electric power equipment, making the book a valuable asset for researchers, engineers, university students, etc.
Author: Ricardo Albarracín Sánchez
Publisher: BoD – Books on Demand
ISBN: 1789237688
Category : Technology & Engineering
Languages : en
Pages : 216
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Book Description
Around 80% of electrical consumption in an industrialised society is used by machinery and electrical drives. Therefore, it is key to have reliable grids that feed these electrical assets. Consequently, it is necessary to carry out pre-commissioning tests of their insulation systems and, in some cases, to implement an online condition monitoring and trending analysis of key variables, such as partial discharges and temperature, among others. Because the tests carried out for analysing the dielectric behaviour of insulation systems are commonly standardised, it is of interest to have tools that simulate the real behaviour of those and their weaknesses to prevent electrical breakdowns. The aim of this book is to provide the reader with models for electrical insulation systems diagnosis.
