You will notice that this text has no examples or chapter problems. There are precious few books available that are devoted to this broad topic of Power Quality. This book does a very good job of addressing all of the Power Quality issues we face today. This book should serve as a primary reference throughout your career. Heydt, Electric Power Quality , Stars in a Circle Publications, 1991.
Power quality is a lot of different things to different people.
For the most part, we can summarize it as any manifestation of disturbance in the voltage, current or frequency, which causes end-use equipment malfunction. While it is termed power quality, the problem is really one of voltage quality. The equipment we use in our everyday life, the industrial process in the nearby factories, natural phenomenon, cell phones, computers, Aurora Borealis, etc. Both these rare and ever-increasing situations cumulatively degrade the power quality. Suddenly, there's a problem and the deeper you look, the worse the problem appears and the tougher it is to solve.