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Power Quality Analyzer PQI-96


PQI-96 is a modern digital measurement instrument, providing accurate three-phase measurements of AC electrical quantities. It also enables power quality assessment according to present standards.

Areas of application

The Power Quality Analyzer PQI-96 is intended for continuous measurements of electrical power and power quality parameters in three-phase AC networks. It can be used to control the conformity of power quality with EN50160 norms.



Device measures of harmonics, interharmonics, unbalance, flicker, active, reactive and apparent powers, phase angles of fundamental and harmonic components, etc.

High accuracy and standard compliance
All power quality measurements are made according to IEC 61000-4-30 ed.2 Class A. Harmonic and interharmonic components are measured according to IEC 61000-4-7 Class I. Flicker is measured according to IEC 61000-4-15 Class F3.

Compact design (96 x 96 x 75 mm)
enables fast and easy installation into distributing panels.

Increased LED indicator height (25 mm)
provides comfortable local meter readings.

Ethernet based synchronization (NTP or PTP IEC 1588)
does not require additional synchronization circuits and is accurate up to В±1μs.

Competitive price
compared to existing power quality instruments.

PQI size


  • Power frequency
  • Voltage and current magnitudes
  • Flicker perceptibility
  • Dips, swells, interruptions
  • Voltage unbalance
  • Voltage harmonics
  • Voltage interharmonics
  • Under- and overdeviation
  • Relative phase angles
  • Active, reactive, apparent powers
  • Active and reactive energies

  • Technical Data

    Dimensions (W x H x D) 96 x 96 x 75 mm
    3.8 С… 3.8 С… 3.0 inch
    Weight 0.7 kg (1.54 lbs)
    Temperature range (operating) -40..+55°C (-40..+131°F)
    Humidity 30 to 80% non-condensing
    IP class ANSI/IEC 60529 IP51
    Voltage 3 x AC inputs (650VAC max)
    57.7/133/230VAC line-to-neutral
    100/230/400VAC line-to-line
    Current 3 x AC inputs
    5A secondary (10A RMS max)
    1A secondary (2A RMS max)
    Communication ports Ethernet (10/100BASE-T or 100BASE-FX), RS-485
    Display 3-row 4-digit LED display or
    QVGA 320x240 LCD color display
    Power Supply
    Remote HMI and Control HTTP (WEB interface)
    Communication protocols IEC 60870-5-104 (Ethernet)
    IEC 60870-5-101 (EIA RS-485)
    Synchronization NTP (RFC 5905) / PTP (IEC-1588)
    Power Supply
    Voltage 90...264 VAC, 47...63 Hz
    DC 130-370V
    Power quality IEC 61000-4-30 : Class A
    Harmonics and Interharmonics IEC 61000-4-7 : Class I
    Flicker IEC 61000-4-15 : Class F3
    Energy IEC 62053-22 : Class 0.2S

    Downloadable Material

    Power Quality Analyzer PQI-96.pdf

    Power Quality Analyzer PQI-120.pdf


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