Clamp-Style Current Transformers (CTs) are a convenient and safe way to measure current flowing through a conductor. PMI offers the TLAR line of iron core CT clamps in both the…
Measuring Current: Best Practices
PMI supports two types of current probes for measurements: Rogowski coil and iron-core clamps. Their distinct properties and characteristics need to be considered in a particular situation to better the…
Using Current Clamps
Measuring the current of residential, commercial or industrial applications is vital to get a complete power quality picture. This white paper covers various topics to effectively utilize the different types…
Disconnecting a Power Quality Recorder
This whitepaper covers the proper method used to disconnect power quality recorders and remove them safely from their location. Following the proper disconnection sequence eliminates or minimizes generating and recording…
Using TLAR CTs
TLARs are PMI's iron core CT (Current Transformer) clamps, available in various probe and channel configurations. These clamps are used for lower range current measurements, with ranges of 20A or…
Getting Started with the 3-Phase Boomerang
The 3-phase Boomerang sends continuous voltage, current, and power information to Canvass, PMI's cloud-based data analysis package. The Boomerang and Canvass provide web-based graphing of 3-phase stripchart, daily profile, and…
Types of Boomerang Units
This white paper is a technical explanation of the form, fit and function of Boomerang PQ monitors. These units are intended to assist utility companies in troubleshooting and maintaining their…
kWh Variations Between PMI Recorders and Revenue Meters
This white paper discusses some of the reasons that PMI's power quality analyzers may differ with the exact amount of power indicated by a power company's revenue meter. There are…
Optimizing Current Resolution Using TLARs or Flex CTs
This white paper describes how to select the proper hardware for high resolution current monitoring with PMI Recorders.