Variational methods for eigenvalue problems 2nd edition

The first edition of this book has been used as a text book by universities and in industry courses throughout the world. In this second edition, the theory and fundamentals of relaying, explained in clear, easily understood language, still constitute the major part of the book. In addition, there is much new material, including a chapter on monitoring power system performance and fault analysis. The authors have extensively revised and updated the material from the first edition. Numerical examples, which clarify the text and demonstrate the philosophy underlying relay selection and settings, are included, and problems world-wide are discussed. Contrasts are made between the different technologies and preferences of USA, Europe and Asia.