1. Load fluctuation monitoring: Regularly record and store the trend of changes in power parameters such as voltage, current, active power, reactive power, frequency, phase, etc.Power quality monitoringdeviceDynamic monitoring of the adjustment and operation process helps users solve problems that arise during the adjustment and operation of power equipment. Test and analyze the causes of faults such as circuit breaker action, transformer overheating, motor burning, and automatic device malfunction in the power system. Test and analyze the dynamic parameters of reactive power compensation and filtering devices in the power system, and quantitatively evaluate their functions and technical indicators.

2. Measure and analyze the quality of AC power supplied by the public power grid to the user's receiving end. The measurement and analysis indicators include power supply frequency deviation, power supply voltage deviation, power supply voltage fluctuation and flicker, allowable imbalance of three-phase power supply voltage, and harmonic of the power grid. Wavelet transform is used to measure and analyze the harmonic of non-stationary time-varying signals. Measure and analyze the impact of various electrical equipment on the power quality of the public power grid under different operating conditions.

3. Function: Receive/send control function, communication method selection function; Send instructions to each monitoring point, extract data or set parameters; The parameters that can be set include: monitoring network points, monitoring indicators, system parameters, timing communication time intervals, etc; Receive power quality data, waveforms, etc. uploaded from various monitoring points; The power quality monitoring device can switch to any line of any substation being monitored, display and collect on-site data; Data processing function; Graphic output function; Report output function.