1Measure various indicators of national standard power quality, including harmonic voltage and current（2to50Total distortion rate, three-phase voltage imbalance, voltage flicker, frequency deviation, voltage deviation;

2Measure various parameter data of the power grid, including voltage, current, active power, reactive power, apparent power, power factor, electrical energy, negative sequence current, zero sequence current, harmonic power, etc;

3Regularly calculate the power quality qualification rate and probability value indicators and store them on a large capacity electronic disk. The statistical storage period can be set, and the main station can obtain the power quality report after reading the data;

4Record the occurrence time and typical values of various out of limit events;

5Convenient communication networking enables online monitoring of power quality;

6HavingRS232口、USBInterface andRJ45Network port, can remotely read various data and modify operating parameters.RS232The interface can be extended toRS485；

7Complete electromagnetic compatibility design, with electrostatic, surge, and pulse group immunity meeting national electromagnetic compatibility standardsGB/T17626stipulated4Level of proficiency;