The APView series Power Quality Analyzer utilizes a high-performance multi-core platform and an embedded operating system. It includes many functions such as harmonic analysis, waveform sampling, voltage sag/swell/interruption detection, flicker monitoring, voltage unbalance monitoring, event recording, and measurement control. The analyzer complies with such standards as IEC 62053-22 Class 0.2S, IEC61000-4-30 Ed3 Class A and IEC61850 for Substation Automation System. It is suitable for power quality monitoring in 110kV and below power supply systems and is widely used in industries such as semiconductor, petrochemical, steel, hospitals, data centers, and transportation buildings, as well as in renewable energy system like photovoltaic, energy storage, and wind power.