Fluke power quality analyser

The 434/PWR power quality analyser can be used to conduct energy consumption studies and electrical load analysis, and to perform power quality logging and analysis surveys. The instrument helps electricians, field service engineers and maintenance technicians uncover energy waste in commercial and factory buildings as well as in equipment and machines. It can also help technicians demonstrate the benefits of efficiency improvements by testing energy consumption.

The analyser measures harmonic distortion caused by electronic loads and analyses reliability problems by capturing voltage dips and swells from load switching. A full-colour display uses industry-standard, user-selectable colour coding to correlate measurements with actual wiring. It logs incoming data with the AutoTrend function that highlights changes of data over time. The data can then be analysed with Fluke’s Power Log software, which is included with the 434/PWR.

The instrument is a three-phase troubleshooting tool that measures virtually every power system parameter: voltage, current, frequency, power, energy consumption, power factor, unbalance and harmonics and interharmonics. The instrument captures events like dips and swells, interruptions and rapid voltage changes based on ½ cycle RMS values. Two groups of four channels simultaneously measure voltage and current on all three phases and neutral. The 434/PWR meets 600 V CAT IV, 1000 V CAT III safety standards required for measurements at service entrance.

A logging function lets users customise measurement selections and provides analysis to find intermittent problems or relate power quality issues to other events. The logger provides detailed and user-configurable, long-term recording. Averaging time can be selected down to 0.5 s (or 1 min for 1 day’s recording, 10 min for 1 week, 30 min for 1 month or more).