528 pages | 438 B/W Illus.
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.
"The author has produced a classic book. It contains all the essential background needed for a reader to become well-versed in vacuum interrupter technology and it will be referenced for many years to come . . . Those working in the field of vacuum interrupter design would obviously be interested in this book, and those who perform or are interested in the vacuum arc switching technology would also find it an outstanding book that will be used for many years to come."
– In IEEE Electrical Insulation Magazine, January/ February 2009, Vol. 25, No. 1
VACUUM INTERRUPTER THEORY AND DESIGN
HIGH-VOLTAGE VACUUM INTERRUPTER DESIGN
The External Design
Electrical Breakdown in Vacuum
Internal Vacuum Interrupter Design
Arc Initiation When Closing a Vacuum Interrupter
THE VACUUM ARC
The Closed Contact
The Formation of the Vacuum Arc during Contact Opening
The Diffuse Vacuum Arc
The Columnar Vacuum Arc
The Transition Vacuum Arc
The Interaction of the Vacuum Arc and a Transverse Magnetic Field
The Vacuum Arc and an Axial Magnetic Field
THE MATERIALS, THE DESIGN, AND THE MANUFACTURE OF THE VACUUM INTERRUPTER
Vacuum Interrupter Contact Materials
The Contact Structures for the Vacuum Interrupter
Other Vacuum Interrupter Design Features
Vacuum Interrupter Manufacture
VACUUM INTERRUPTER APPLICATION
GENERAL ASPECTS OF VACUUM INTERRUPTER APPLICATION
The Interruption of AC Circuits
Interruption of AC Circuits When the Contacts Open Just before Current Zero
APPLICATION OF THE VACUUM INTERRUPTER FOR SWITCHING LOAD CURRENTS
Load Current Switching
Switching Inductive Circuits
Switching Capacitor Circuits
Vacuum Interrupters for Circuit Switching, Circuit Isolation, and Circuit Grounding
CIRCUIT PROTECTION, VACUUM CIRCUIT BREAKERS, AND RECLOSERS
Late Breakdowns and Nonsustained Disruptive Discharges
Vacuum Circuit Breaker Design
Vacuum Circuit Breaker Testing and Certification
Vacuum Circuit Breakers for Capacitor Switching, Cable and Line Switching, and Motor Switching
Application of Vacuum Circuit Breakers