Power Quality Analysis

Power quality analysers and meters

Three phase power quality analysers are ideal for troubleshooting, logging, and creating detailed reports in conjunction with the easy-to-use Energy Analyse Plus or PowerLog-430-II software.

Below is an Example of the various sub categories: 

E.g. Online Instruments, Portable Instruments, Software.

Power Quality – Portable and Online Instruments:

Power quality measurement and energy management tools

Whether you’re in an industrial plant, manufacturing facility or a utility, Fluke Power Quality and energy management tools are designed to assist in capturing the power quality and energy data needed to maintain the best performance and reliability. These tools make it possible to identify your power quality and energy efficiency issues with easy and effective recording and analysis. Available accessories like the Fluke PQ400 Electrical Measurement Window can even enable you to make three phase measurement connections without the need to open the panel door or utilize supplemental PPE. This allows you to quickly take measurements whenever you need to—without worrying about downtime. Flexible and powerful software is also included with every Fluke Power Quality and Energy Analysis tool, allowing you visibility to valuable insights about the performance of your electrical system.

Find the right power quality tool


Power quality recorders

Power quality recorders capture the most detailed data and help you discover the most difficult-to-find problems.  With the supporting application software, a recorder can help you see the full picture, enabling you to fix the problems.


Power and energy loggers

Power and Energy loggers are used for conducting three-phase energy and load studies to discover where savings are possible. With Fluke Energy Analyze Plus software, it’s possible to create detailed reports to focus in on the problem areas.


Power quality analyzers and troubleshooters

Three-phase power quality analyzers are ideal for power quality testing, troubleshooting, logging, and creating detailed reports in conjunction with the easy-to-use PowerLog-430 software.


Precision power analyzers

From testing the performance of transformers, lighting or switching electronics, Fluke high-precision power analyzers have the highest accuracy and can handle the most difficult waveforms.

Fluke 438-II Power Quality Analyzer & Motor Analyzer

Key features

The 438-II Power Quality Analyzer & Motor Analyzer helps you effectively evaluate electrical and mechanical performance just by hooking up voltage and measuring current, providing you with an unprecedented level of data.

  • Brings key motor analysis parameters like speed, torque and mechanical power and calculates motor efficiency without mechanical sensors
  • Includes full power quality and electrical energy analyser functionality
  • Highest safety rating in industry; 1000 V CAT III / 600 V CAT IV

Product overview: Fluke 438-II Power Quality Analyzer & Motor Analyzer

Quickly and easily discover electrical and mechanical performance of electric motors, and evaluate power quality with a single test tool

The Fluke 438-II Power Quality and Motor Analyzer adds key mechanical measurement capabilities for electric motors to the advanced power quality analysis functions of the Fluke 435 Series II Power Quality Analysers. Quickly and easily measure and analyse key electrical and mechanical performance parameters such as power, harmonics, unbalance, motor speed, torque and mechanical power without the need of mechanical sensors. Fluke 434-II, 435-II and 437-II Power Quality Analyzer users can add motor analysis capabilities to their existing units with the Fluke-438-II/MA Motor Analyzer upgrade kit. The 438-II uses data from the motor rating plate for either NEMA or IEC rated motors to aid the calculation of the mechanical parameters.

Other useful features:

  • Calculates mechanical power and efficiency without mechanical sensors. Just connect to the input conductors
  • Measures electrical power parameters such as voltage, current, power, apparent power, power factor, harmonic distortion and unbalance to identify characteristics that impact motor efficiency
  • Identify power quality issues such as dips, swells, transients, harmonics and unbalance
  • Uses Power Wave data capture to capture fast RMS data, and show half-cycle averages and waveforms to characterize electrical system dynamics (generator start-ups, UPS switching etc.)
  • Offers waveform capture function to capture 100/120 cycles (50/60 Hz) of each detected event, in all modes, without set-up
  • Uses automatic transient mode to capture waveform data at 200 kS/s on all phases simultaneously up to 6 kV
  • Automatically calculate motor derating according to NEMA/IEC guidelines.