Which electrical power systems quality book should you own?

Invaluable to everyone working in the field, from utility engineers to industrial plan technicians to power quality consultants, Electrical Power Systems Quality, 2e is the book you should own if you could have only one book on the subject. Roger C. Dugan is a senior consultant with Electrotek Concepts, Inc.

How has power quality changed since the first edition?

Since the first edition of this book was published, there have been some developments that have had an impact on power quality: 1. Throughout the world, many governments have revised their laws regulating electric utilities with the intent of achieving more cost-com-petitive sources of electric energy.

What are the basic tenets of solving power quality problems?

One of the basic tenets of solving power quality problems is that dis-turbances in the electric power system are not restricted by legal boundaries. Power suppliers, power consumers, and equipment suppli-ers must work together to solve many problems.

When did power quality devices start?

Significant development on power quality devices was not made until the 1960s when Martzloff developed a surge counter that could capture a voltage waveform of lightning strikes.2 The device consisted of a high-persistence analog oscilloscope with a logarithmic sweep rate (see Fig. 11.8).

Why should power quality indices be based on customer equipment Sensi-Tivity?

The power quality information should be analyzed and summarized in a form that can be used to prioritize system expenditures and to help customers understand the system performance. Therefore, power quality indices should be based on customer equipment sensi-tivity. The SARFI index for voltage sags is an excellent example of this concept.

Why are standards important in power quality monitoring?

Standards are very important in the area of power quality monitoring. Power quality levels must be defined consistently and characterized using the same methods if they are going to be compared from one site to another and from one system to another.