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Power quality analyzer

Power quality analyzer Power quality analyzer Power quality analyzer Power quality analyzer
Product name:Power quality analyzer


This PQA-3561 is 3P/3W and 3P/4W testing and analyzing device for the quality of power grid. It provides multiple analyzing for electric harmonic, voltage/current/frequency, 3-phase unbalance, power and energy, data recording and so on.

It helps you locate, predict, prevent and troubleshoot problems in power distribution systems.

It is featured with big size memory, suitable for long-time analyzing & collecting data of power grid; Featured PC software can analyze data collected and uploaded into PC.


-- Frontline troubleshooting - quickly diagnose problems on-screen to get your operation back online

-- Predictive maintenance - detect and prevent power quality issues before they cause downtime

-- Quality of service compliance - validate incoming power quality at the service entrance

-- Long-term analysis - uncover hard-to-find or intermittent issues

-- Load studies - verify electrical system capacity before adding loads

-- Energy assessments - quantify energy consumption before and after improvements to justify energy saving devices.

Main features

-- Light weight, small size, portable

-- 5.7” 320x240 colorful LCD touch screen

-- Could test 3-phase volt, null line volt, 3-phase current, null line current, etc.

-- Up to 50 times harmonic testing with frequency spectrum graph

-- Power testing: 3-phase apparent power, active power, reactive power, power factor, and 3-phase electric power

-- 3-phase unbalance testing with vivid chart

-- Record at least 40 times of surge current

-- Testing for wave motion, short-time flicker and long-time flicker

-- Record up to 40 times of sag and swell

-- Digital oscilloscope, checking waveform for voltage and current signal

-- With DataView software for convenient analyzing of monitoring results

-- USB communication port

-- High performance lithium ion battery powered, last for 5 hours

Main technical index

--Input impedance: 1MΩ, 20PF

-- Measurement range of voltage: 10~700Vrms

-- Measurement range of current: 5A, 10A, 100A, 1000A, 1500A and 3000A (via relative current clamps)

-- Frequency range: 40Hz~70Hz

-- Harmonic measurement: 1~50th

-- Inrush current: 2000A

-- Peak voltage: 1000V

-- Net weight of main body: 1.6kg (3.53lb)

Main measurement function index


Measurement range



10~700V (true rms)



0.5~3000A (true rms)





Harmonic testing

Voltage: total harmonic, 1~50th


Current: total harmonic, 1~50th


Power testing

Active power: 0.05~700kW

Indication +/-50W

Apparent power: 0.05~700kVA

Indication +/-50VA

Reactive power: 0.05~700kVAR

Indication +/-50VAR

Power factor: 0.00~1.00

Indication +/-0.05

Active energy: 0.01~10000kWh

Indication +/-0.05kWh

Apparent energy: 0.01~10000kVAh

Indication +/-0.1kVAh

Reactive energy: 0.01~10000kVARh

Indication +/-0.1kVARh

Average power factor: 0.00~1.00

Indication +/-0.005

3-phase Unbalance

Fundamental voltage: 10~700V (true rms)


Fundamental current: 0.5~1000A (true rms)


Fundamental frequency: 40~70Hz


Phase angle: 0~360°


Unbalance: 0.0%~100%


Data recording

3P voltage, 3P current, null current, voltage harmonic (THD and 1~25 harmonics), current harmonic (THD and 1~25 harmonics), unbalance, active power, apparent power, reactive power, power factor, flicker and fluctuation, etc.

Time interval: 3s~30min, adjustable;

Time duration: <960 hours

Sags (Dips)/Swell

Voltage sag, voltage Swells and instant interruption

Max. could record 40 times


Voltage fluctuation 0.1%~10.0%

≤ +/-5%


Short-time and long-time flicker

Short-time ≤ +/-5%

Digital oscilloscope

Transient waveforms of 3P voltage, 3P current, null voltage and null current

Max. sampling frequency: 200KHz

Min. sampling frequency: 100Hz



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