Elements Of Electrical Design Second Edition

Elements of Electrical Design ... Second Edition

Electrical Systems Design

The modern world is so dependent on electricity that it is always around us, supporting and promoting every aspect of human life. The major attributes that make electricity the ideal source of power, for a wide variety of applications are: * Electricity is efficiently produced, transported and distributed * Electricity is easily converted into useful work, light or heat at the final destination * Electricity supply systems are very reliable and * Electricity is easily controlled. A well planned and carefully installed electrical system can be a pleasure to operate. These will reward us with many years of safe, efficient and reliable service. On the other hand a poorly designed, badly executed electrical system can be dangerous to human lives and property, unreliable and a never ending source of problems and extra expenses. Although safety is the primary objective of a good Electrical System Design, the information given in this book is not intended to be a substitute for the national or manufacturer's safety guidelines. This book presents a comprehensive coverage of Electrical Systems Design useful to the engineering degree students as well as practising engineers. A basic knowledge of electrical engineering is required to understand the concepts. Even though the current practice is to use software tools for every design process, this book provides the background information to help the users to understand how to use electricity efficiently, safely and economically.

Electrical Contacts

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.