Power quality

Electrical supply problems take many forms, including shifting frequency, sudden voltage spikes, earthing faults and electrical noise, and their remedies can be intricate. Approaching them through a blend of theory and qualitative analysis makes them far more manageable, so professionals can start finding workable fixes for the difficulties they meet on site. Written for designers, engineers and technicians working in today's power networks, the book treats power system theory and power quality principles as closely linked. It supports each idea with many practical cases and measurements drawn from the author's three decades of designing, testing and troubleshooting power systems.

The text compares the different instruments used to measure power quality and shows how to read the resulting data accurately. It also sets out alternative remedies for these problems and weighs each one for technical suitability and cost.

The author stresses that poor power quality can cost productivity and even lives, yet much of this harm is avoidable. A sound grasp of electrical power quality and how it affects system performance is the key, and the book shifts the subject from abstract theory toward hands-on practice, building the skills to measure, test and resolve these problems.