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Protection for Power Systems, Paperback by Johns, A. T.; Salman, S. K., ISBN 086341303X, ISBN-13 9780863413032, Like New Used, Free shipping in the US
<p> protection is based on the use of computers in power line relaying. Since the late 1960s, devices and techniques have been applied to almost all new protection schemes. Today the technology is moving towards standardised hardware platforms; at the software level, however, there remains a huge variety in approaches and protection algorithms.</p> <p>This book gives a fairly detailed understanding of the principles and techniques underlying the application of technology and algorithms to protection. It avoids going into detail of specific products: up-to-date information on these is available from the manufacturers. Instead it aims to give the reader a thorough understanding of the generic problems of protection.</p> <p>The text covers the mathematical basis of numerical techniques and relay algorithms, the basic elements of protection and the fundamentals underlying the commonest algorithmic forms, particularly as applied to line protection. It deals with the fundamentals of travelling-wave techniques and their application to transmission lines, and with differential protection of transformers and lines.</p>
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