Power quality monitoringdeviceWhat is it mainly used for?

Power quality mainly includes the quality of voltage, frequency, and waveform. The online monitoring equipment for power quality mainly measures voltage deviation, voltage fluctuation and flicker, frequency deviation, harmonics, voltage asymmetry, imbalance, etc.Monitoring the reliability of power supply is also one of the important tasks. Power supply reliability refers to the ability of a power supply system to continuously supply electricity, which is an important indicator for assessing the quality of power supply system energy. It reflects the degree to which the power industry meets the national economic energy demand and has become one of the standards for measuring a country's economic development level.

Power supply reliability can be measured by a series of indicators such as power supply reliability rate, average user outage time, average user outage frequency, and equivalent system outage hours; The reliability rate of power supply in general urban areas in China has reached3个9(i.e99.9%）Above, the average annual power outage time of the user shall not exceedeight point seven sixHours; Important urban centersPower quality monitoring deviceReached4个9(i.e99.99%）Above, the average annual power outage time of the user shall not exceedfifty-threeMinutes.