Power quality monitoringdeviceIt is a long-term installation and operation on the testing site, transmitting data in real-time, so it is called "online". Capable of measuring voltage, current, power, harmonics, flicker (some power analyzers can); Simple waveform viewing and analysis, saving data; The voltage is generally within 1000V, and the current can be measured by the current sensor.

Power quality analyzerIt is an industry measurement tool that records and analyzes power quality issues in the power grid. It can capture common power quality issues such as harmonics, voltage fluctuations, flicker, power, and three-phase imbalance at fault sites, and provide functional evaluation and management decisions on power quality for smart grids, new energy, electrified railways, and large industrial users. The sampling power analyzer can reach several megabytes, and the power quality analyzer is generally within 1M.

Power quality monitoring is a device that uses power quality standards as limits and records power quality events through machine triggered limits. Power quality monitoring is not limited to standards and can only be tested within a bandwidth range. The quality of electrical energy supplied to users through the public power grid refers to the quality of AC power in the power grid line. Power quality issues are mainly caused by the terminal load side. For example, impulsive reactive loads can cause severe fluctuations in the voltage of the power grid, reducing the quality of power supply.

The number of rectifiers, variable frequency speed control equipment, electric arc furnaces, electrified railways, and various power electronic equipment used in the distribution network of various user terminals in the power grid system is constantly increasing. The impact on the electricity network, or in other words, electricity pollution. Formation of voltage instability, overvoltage, harmonic generation, etc. Harmonics reduce the power required for the production, transmission, and use of electrical energy, causing overheating, vibration, and noise in electrical equipment, aging insulation, shortening lifespan, and even causing malfunctions or burning.