This new edition of a successful reference work provides the professional with all the techniques and methods which are required to be incorporated into the design of an electrical power system. The new edition has been comprehensively updated and contains new chapters on the essential topics of digital communications, digital signal processing and protection and, lastly, new relaying concepts. The book provides a sound and complete treatment of the fundamentals of power system protection and illustrates the principles with examples from current practice. The text includes many insights into modern technologies and research areas. Electrical Power System Protection is an essential reference handbook for all engineers working in electrical utilities, as well as for designers and users of electrical protection equipment. It also forms a complete reference text for advanced undergraduate and postgraduate students on courses in electrical engineering.