The improvement of power quality is the requirement of the rise and development of power market. In the power market environment, power supply is a kind of commercial behavior.

        The primary purpose of on-line monitoring of power quality is to minimize the economic losses caused by various power quality problems. Through the on-line monitoring of power quality, some major problems existing in the power grid can be found in time. By starting the corresponding protection devices, the operation failure rate of the power grid can be reduced, so as to reduce economic losses.

        Obtain power quality information through on-line monitoring, fully understand the anti-interference performance of various electrical facilities in the power grid, and provide necessary information for subsequent electrical equipment access to the network.

        The power grid has high requirements for power quality. Once the power quality in the power grid has problems, it will bring a series of hazards:

        Power quality is a potential threat to the development of power grid. The existence of a large number of harmonic currents will lead to transformer overheating and cable overheating; Sudden voltage drop will damage the equipment. Radio frequency interference will reduce the accuracy of the monitoring device and interfere with normal communication. Power quality problems endanger the production benefits of the enterprise. There are a large number of new loads in the enterprise factory and account for a large proportion of the load of the whole power system. Power quality problems directly lead to serious losses in production and operation Adverse consequences such as the increase of product scrap rate.

        The problem of power quality is closely related to residents' life. Voltage fluctuations usually damage household appliances and affect the normal use of daily life.

        Therefore, it is very important to monitor the power quality of power grid in real time.

        To solve the problem of power quality, we need to rely on excellent power quality monitoring technology. Through effective power quality monitoring methods, we can monitor the power quality of the power grid in real time, quickly find the problems existing in the power grid, and take corresponding measures to improve the power quality in time.