Power Systems Protective Relaying by J.C. Das
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Power Systems Protective Relaying by J.C. Das

PREFACE to Power Systems Protective Relaying by J.C. Das:

This Power Systems Protective Relaying by J.C. Das handbook on power systems consists of four volumes. These are carefully planned and designed to provide state-of-the-art material on the major aspects of electrical power systems, short-circuit currents, load flow, harmonics, and protective relaying.

An effort has been made to provide a comprehensive coverage, with practical applications, case studies, examples, problems, extensive references, and bibliography.

The material is organized with sound theoretical base and its practical applications.

The objective of creating this series is to provide the reader with a comprehensive treatise that could serve as a reference and day-to-day application guide for solving the real-world problem.

It is written for plasticizing engineers and academia at the level of upperundergraduate and graduate degrees.

Though there are published texts onsimilar subjects, this series provides a unique approach to the practical problems that an application engineer or consultant may face in conducting system studies and applying it to varied system problems.

Some parts of the work are fairly advanced on a postgraduate level and get into higher mathematics. Yet the continuity of the thought process and basic conceptual base are maintained.

A beginner and advanced reader will equally benefit from the material covered.

An underground level of education is assumed, with a fundamental knowledge of electrical circuit theory, rotating machines, and matrices.

Currently, power systems, large or small, are analyzed on digital computers with appropriate software.

However, it is necessary to understand the theory and basis of these calculations to debug and decipher the results. A reader may be interested only in one aspect of power systems and may choose to purchase only one of the volumes.

Many aspects of power systems are transparent between different types of studies and analyses—for example, knowledge of short-circuit currents and symmetrical component is required for protective relaying and fundamental frequency load flow is required for harmonic analysis.

Though appropriate references are provided, the material is not repeated from one volume to another. The series is a culmination of the vast experience of the author in solving real-world problems in the industrial and utility power systems for more than 40years.

Another key point is that the solutions to the problems are provided in Appendix D. Readers should be able to independently solve these problems after perusing the contents of a chapter and then look back to the solutions provided as a secondary help.

The problems are organized so these can be solved with manual manipulations, without the help of any digital computer power system software. It is hoped the series will be a welcome addition to the current technical literature.

The author thanks CRC Press editor Nora Konopka for her help and cooperation throughout the publication effort.

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