Power Quality Comprehensive Tester

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Power Quality, in a general sense, refers to high-quality power supply, including voltage quality, current quality, supply quality, and consumption quality. It can be defined as deviations in voltage, current, or frequency that cause equipment failure or malfunction, including frequency deviation, voltage deviation, voltage fluctuation and flicker, three-phase unbalance, temporary or transient overvoltage, waveform distortion (harmonics), voltage sags, interruptions, swells, and supply continuity. In modern power systems, voltage sags and interruptions have become the most important power quality issues. The Power Quality Analyzer is a specialized portable product for detecting and analyzing the quality of power grid operation. It can provide harmonic analysis and power quality analysis during operation, and can perform long-term data collection and monitoring of the power grid. It is also equipped with power quality data analysis software to perform various analyses on measurement data uploaded to a computer.

 

Basic Functions

 

No.	Item	Description
1	Voltage/Current/Frequency	Measures three-phase voltage, neutral voltage, three-phase current, neutral current, frequency, etc.
2	Harmonic Measurement	Measures up to the 50th harmonic.
3	Power Measurement	Measures three-phase apparent power, active power, reactive power, power factor, three-phase electric energy, etc.
4	Three-Phase Unbalance Measurement	Measures three-phase voltage unbalance and positive-sequence, negative-sequence, and zero-sequence voltages.
5	Inrush Current	Records at least 40 inrush current events.
6	Fluctuation/Flicker	Measures fluctuation, short-term flicker, and long-term flicker.
7	Swell/Sag	Records voltage swell and sag events, up to 40 events.
8	Monitoring and Recording	Long-term recording of basic (steady-state) power quality parameters.
9	Digital Oscilloscope	Used for viewing voltage/current signal waveforms.

Note: The above information and technical parameters are compiled and published by Yangzhou Darui Electric Co., Ltd.