<P>For many years,<B> Protective Relaying: Principles and Applications </B>has been the go-to text for gaining proficiency in the technological fundamentals of power system protection. Continuing in the bestselling tradition of the previous editions by the late J. Lewis Blackburn, the <B>Fourth Edition</B> retains the core concepts at the heart of power system analysis. Featuring refinements and additions to accommodate recent technological progress, the text:</P><UL><P><LI>Explores developments in the creation of smarter, more flexible protective systems based on advances in the computational power of digital devices and the capabilities of communication systems that can be applied within the power grid</LI><LI>Examines the regulations related to power system protection and how they impact the way protective relaying systems are designed, applied, set, and monitored</LI><LI>Considers the evaluation of protective systems during system disturbances and describes the tools available for