Stan Stewart wrote an excellent book about distribution switchgear, i first thought before buying this book that there aren't too much to learn about this subject, but after reading the first few pages of the book i was surprised, Mr. Stewart explanation is simply elegant and the historical aspects he explains is very important to fully understand switchgear.
This and the fact that Mr. Stewart have many years of experience in the field and worked at GEC Alstom; one of the industry leaders, encouraged me to buy this book.
In every part of the book Mr. Stewart give through explanation, even sometimes you may feel he didn't explain a point throughly you find the next paragraph detailing it clearly in a very logical manner.
This book as i see is useful to engineers interested in switchgear according to IEC standards, and the material inside is more than sufficient for Sales Eng. , project Eng., newcomers to the field, Eng. preparing training materials,...
And it is very good introduction for design engineers and those interested in R&D in the field since it collect a wealth of information, but don't expect to find inside how to design distribution switchgear (i.e. design busbars, contact systems,...) but the material in the book is very important in that it explain how the technical details affect final product design and usage and also point out the technologies used so that interested Eng. can research it more. (i.e. Why its important to measure contact closing timing during testing ? , How does overvoltages affect switchgear operation ? and what are its types )
Finally the book is upto date although some new technologies wasn't explained in detail, but this will be easy to understand after reading the book. (i.e. autopuffer circuit breaker)
I highly recommend this book and would like to thank Mr.Stewart for this excellent work.
I would like to mention some points, i would like it to be added in the next editions of the book
1) Explaination of "Pole Center Distance" and its importance.
2) More explaination of the different breakdown mechanizms in Air and SF6 mainly the difference between switching impulse and lighting impulse.
3) Autopuffer technique and thermal expansion in SF6 CBs.