Electric Relays

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The electric relay is one of the most frequently used devices in modern technological systems, yet broad information is difficult to locate. There are so many types that most engineers are familiar with only a limited number of relays applicable to very specific devices. This book contains a complete description of electrical relays, their principles of operation, and applications for all basic types. It includes the historical background for various types and discusses the issues of design and the operation principles of relay components for complicated types of relays. The author uses clear language, avoids heavy mathematics, and includes numerous illustrations for a highly accessible presentation.