Power Quality Analyzer

A Power Quality Analyzer (PQA) is a piece of test equipment designed to evaluate the quality of power on its input. These devices are available in three-phase and single-phase models. They measure both current and voltage, and detect dips, swells, fast transients, harmonics, power factor, and a host of other parameters that are useful for advanced power troubleshooting. They offer logging over time and in-depth analysis using PC-based software and reporting tools.

One example of a single-phase unit is the Fluke 43B. Three-phase PQA's are represented by the Fluke 434 or 435, and the Dranetz PowerVisa or PowerXplorer.

These units typically cost between $2000 and $10,000, depending on the features and types of current probes that are included.


Fluke 43B Single-Phase PQA


Dranetz PowerXplorer Three-Phase PQA


Fluke 435 Three-Phase PQA

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