These resources explore the theory, measurement techniques, and equipment used to make power system measurements, including energy usage and power quality analysis.
Measuring Power Consumption provides a quick review of basic power parameters and discusses commonly used power measurement instrumentation
AC Power Measurement Guide covers power measurements in single-phase and three-phase systems. A table of conversion factors is included.
Power Quality in a Nutshell is an introduction to the terminology and techniques involved in assessing the quality of ac power systems.
Power & Energy Products discusses the types of products used to measure power and energy, in both fixed and portable applications.