Power quality monitoring is an important part of finding power quality problems, which can be used to determine the cause of equipment misoperation. Accurate information can provide useful clues for the solution, and power quality monitoring device can quickly and systematically display these useful information.

        Now we need a device that can analyze and reflect the power quality level of the power grid in time, so as to find out the reasons that affect the quality of the power grid, and take corresponding rectification measures to improve the power supply quality of the existing power supply system, reduce the power loss, and ensure the safe, reliable and economic operation of the power grid, At the same time, it also provides accurate historical data and basic data for the further construction and improvement of power grid and accident analysis. It is the power quality on-line monitoring device that meets the above conditions.

        There are two advantages of power quality on-line monitoring system, one is intelligent, intelligent concrete analysis can reduce human labor, automatically identify and process power quality problems, so as to achieve a comprehensive unmanned monitoring function;

        The second is remote. With the development of power industry and the expansion of power grid, power supply departments and users urgently need to monitor a large number of monitoring points. However, the power quality monitoring problems vary according to the needs of users and power grid due to the dispersion and distance of each point. So remote can adapt to different levels of monitoring requirements, so that power quality monitoring points can be distributed to any place in the grid, and has good online function.