Power station and inverter monitoring

Power quality analyzer

PX-MEQ100 single-phase/three-phase/AC/DC efficiency testing tool

PX-MEQ100 is mainly used for testing the power quality of the power grid. Capable of recording and analyzing harmonics and voltage on site. All power quality parameters, including current, frequency, fluctuation, flicker, power, and three-phase imbalance, are equipped with advanced measurement functions such as transient monitoring, waveform analysis, and energy efficiency loss.


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Performance characteristics:

1. Recording analysis supports 1-10min recording function, supports custom sampling points to record original waveforms, and upper computer analysis software for secondary waveform analysis, which can effectively analyze the causes of power grid faults.

2. Parameter analysis comprehensively records and analyzes power quality parameters. The minimum recording interval is 0.2s, and the recorded data can be used for secondary analysis by the upper computer software, and production reports can be customized.

3. Transient monitoring can achieve high-speed fixed frequency sampling at 200KHz. Can capture the shortest 50us waveform instantaneous pulse and capture rapidly changing waveform data.

4. Energy efficiency loss assessment supports power decomposition, detailing the power loss caused by various types of parameters, supporting pollution assessment, and visually displaying the economic losses caused by capacity loss in monetary form.

5. The inverter measurement function can analyze the electrical parameters of single-phase/three-phase inverters, analyze and record the DC input, AC output, and conversion efficiency parameters of the inverter.

6. The oscilloscope testing function displays 4-channel current and voltage waveforms, supports horizontal and vertical scaling, visually displays waveform distortion, and understands the impact of high-order harmonics on the signal.


Specification type
PX-MEQ100

RecorderOscilloscopeA,B,C,N Real time waveform of voltage and current in each phase
Voltage and current frequencyFrequency value, voltage effective value, voltage half wave effective value, voltage positive peak value, voltage negative peak value, voltage waveform factor, current effective value, current half wave effective value, current positive peak value, current negative peak value, current waveform factor
Power and electrical energyActive power, reactive power, apparent power, power factor, displacement power factor, active electrical energy, reactive electrical energy, apparent power electrical energy
Voltage harmonicsTHD, DC, 1-50th harmonic, 0-49th interharmonic, 1-35th higher-order harmonic
Current harmonicsTHD, DC, KF, 1-50th harmonics, 0-49th interharmonics, 1-35th higher-order harmonics
Harmonic powerTHD, DC, 1-50th harmonic power
FlickerPST (short flicker); PLT (long flicker)
Out-off-balancePositive sequence voltage, positive sequence current, negative sequence voltage, negative sequence current, zero sequence voltage, zero sequence current, imbalance degree
InverterDirectDC voltage, DC current, DC power, ripple voltage, ripple voltage content
CommunicationFrequency, effective value of voltage, effective value of current, total apparent power, total active power, total power factor, fundamental power, fundamental power factor
EfficiencyConversion efficiency 
MonitorMonitorVoltage RMS, voltage harmonics, PLT, voltage sag, voltage sag, voltage interruption, steady-state voltage variation