Power quality monitoring仪Differences from analyzers:
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, providing performance evaluation and governance decisions on power quality for smart grids, new energy, electrified railways, and large industrial users. Generally speaking, power quality analyzers can includeOnline monitoring device for power qualityHowever, currently, the general power quality analyzer on the market refers to portable power quality equipment, which is small in size and can be used for testing. Online power quality monitoring equipment is installed and operated on the testing site for a long time, transmitting data in real-time, so it is called "online".
1. Similarities:It can measure voltage, current, power, harmonics, flicker (some power analyzers can);Simple waveform viewing and analysis, saving data;The voltage is generally1000vWithin, the current can be measured based on the current sensor.
2. Differences:The bandwidth of the power system power quality monitoring instrument is average10MSuitable for testing0-10MWithin the frequency conversion signal range, the power quality analyzer is average45-65HzSuitable for measuring signals of power grid and power frequency equipment connected to the power grid;How much can the sampling power analyzer reachMThe power quality analyzer is generally1MWithin;The power quality analyzer is a device that uses power quality standards as limit values, and machines trigger limit values to record power quality events,Power system power quality monitoring instrumentNot limited to standards, as long as it can be tested within the bandwidth range.