PQMS - power quality monitoring system: Improve power systems through IEDS

This paper discusses a new concept in power quality monitoring through the use of digital multimeters specially designed for use in circuits with nonlinear loads, together with other intelligent electronic devices. These devices allow utilities to monitor and analyze relevant disturbances in the distribution system. Interconnected equipment on a high-speed communications network provides the basis for an electrical power quality monitoring system. This system is a powerful tool for evaluating and minimizing the costs of interruptions, maintenance, and any other influencing factors that may negatively impact the power system.