The Vacuum Interrupter

Author: Paul G. Slade
Publisher: CRC Press
ISBN: 9781420008593
Format: PDF, ePub, Docs
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Drawn from the author's more than four decades of practical experience in the industry, The Vacuum Interrupter: Theory, Design, and Application first discusses the design and manufacture of the vacuum interrupter before delving into its general application. The book begins with a review of the vacuum breakdown process and what to consider when developing a design for a high-voltage application. It then discusses the vacuum arc and how its appearance changes as a function of current. This section concludes with an overview of existing contact materials, a summary of their advantages and disadvantages, an analysis of vacuum interrupter contact design, and considerations for the manufacture of vacuum interrupters. The next section on application describes the interruption process for low- and high-current vacuum arcs, examines the voltage escalation event that occurs if the contact gap is very small at the ac current zero, and explores the phenomenon of contact welding. It also studies the application of vacuum interrupters to switch load currents, circuit breakers, and reclosers. Owing to the increasing need for environmentally friendly interrupting systems, the development of vacuum interrupters will only intensify over time. With extensive references in each chapter for further exploration, this comprehensive guide provides essential, up-to-date knowledge to fully understand this vital technology.

Elektrische Kontakte Werkstoffe und Anwendungen

Author: Eduard Vinaricky
Publisher: Springer-Verlag
ISBN: 3642454275
Format: PDF, Kindle
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Das umfangreiche Standardwerk ermöglicht es, sich in das Spezialgebiet einzuarbeiten und zeigt Wege, mit denen eine optimale Ausführung des Kontaktsystems in Schaltgeräten erreicht und eine sichere und zuverlässige Kontaktgabe gewährleistet werden. Neue Herausforderungen und Weiterentwicklungen, die sich bezüglich des Schaltverhaltens elektrischer Kontakte – z.B. beim Einsatz in der Photovoltaik und in Windkraftanlagen – ergeben, sind Schwerpunkte dieser 3. Auflage. Die steigenden Anforderungen an die Kontaktstellen in Schaltgeräten und elektromechanischen Bauelementen, der sparsame Einsatz von Edelmetallen sowie Umweltaspekte bestimmen nachhaltig die Entwicklung von Werkstoffen und Beschichtungen im Bereich elektrischer Kontakte.

Electrical Contacts

Author: Paul G. Slade
Publisher: CRC Press
ISBN: 1351832719
Format: PDF, Docs
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Covering the theory, application, and testing of contact materials, Electrical Contacts: Principles and Applications, Second Edition introduces a thorough discussion on making electric contact and contact interface conduction; presents a general outline of, and measurement techniques for, important corrosion mechanisms; considers the results of contact wear when plug-in connections are made and broken; investigates the effect of thin noble metal plating on electronic connections; and relates crucial considerations for making high- and low-power contact joints. It examines contact use in switching devices, including the interruption of AC and DC circuits with currents in the range 10mA to 100kA and circuits up to 1000V, and describes arc formation between open contacts and between opening contacts. Arcing effects on contacts such as erosion, welding, and contamination are also addressed. Containing nearly 3,000 references, tables, equations, figures, drawings, and photographs, the book provides practical examples encompassing everything from electronic circuits to high power circuits, or microamperes to mega amperes. The new edition: Reflects the latest advances in electrical contact science and technology Examines current research on contact corrosion, materials, and switching Includes updates and revisions in each chapter, as well as up-to-date references and new figures and examples throughout Delivers three new chapters on the effects of dust contamination, electronic sensing for switching systems, and contact phenomena for micro-electronic systems (MEMS) applications With contributions from recognized experts in the field, Electrical Contacts: Principles and Applications, Second Edition assists practicing scientists and engineers in the prevention of costly system failures, as well as offers a comprehensive introduction to the subject for technology graduate students, by expanding their knowledge of electrical contact phenomena.

Power Circuit Breaker Theory and Design

Author: Charles H. Flurscheim
Publisher: IET
ISBN: 9780906048702
Format: PDF, ePub
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The book has 13 chapters and the following topics are dealt with: development of circuit breakers; physics of circuit breaker arcs; network switching conditions; oil circuit breakers; air break circuit breakers; air blast circuit breakers; SF6 circuit breakers; vacuum circuit breakers; special switching systems; circuit breaker specification and testing; design criteria for reliability, maintenance & safety; insulation applied to circuit breakers; cost effective design; and visual current chopping.