Protective Relaying: Principles and Applications, Fourth Edition

The book delves deep into theory, stopping just short of being able to use its knowledge in practical applications.

It's an excellent book. This should be a reference for relay engineers or students that want to enter to this field.

Muy buen libro complio lo que requeria

Good source of information

This is my most commonly used reference material on the job. I originally owned a copy of revision three but ended up getting this copy as part of a class I took. It cleans up some of the minor mistakes that the older version had and it brings some more modern references into the book but let's be serious. If you're getting this book, you're mostly getting it for the great detail provided on the principles of protective relaying which have not changed much since their origins. I think I liked the formatting of the older book more, the font, sizing, etc but I find it difficult to remove a star for that when the new one is still perfectly readable. Some of the graphics are still outdated looking and can be difficult to read but if you're already familiar with TCCs and power equipment, you'll be able to fill in the gaps. If you're not familiar, they're an overwhelming abundance of information on the internet to help. Again, I find it difficult to pull a star for that because I'm guessing anyone buying this book is buying it for the principles and not the art. To that point, there are very few printed resources that match up to Blackburn when it comes to principles of protective relaying.

The Bible, a must have for all protection engineers, it helped me a lot in my relay understandings and settings