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…
Using PMI’s TLAR and TLAR-S Clamp-Style Current Transformers
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…
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.
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…
Power Quality in Traffic Signal Cabinets
The first electric traffic signals were installed over 100 years ago but now are a ubiquitous aspect of modern life. Today's intersections are far more complex, with a cabinet of…
Recording for NEC 220 Compliance
Utility customers who are expanding operations or adding load must comply with National Electric Code Article 220 to determine if any electrical upgrades are needed. Many customers will ask the…
Hardware for Power Quality and Distribution Monitoring
PMI offers an array of monitoring devices for just about any utility distribution monitoring need. Data needs, location, and communications requirements are all factors involved in selecting the right monitor…
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…
Getting Started with the Pole Mount Boomerang
This white paper will explain the process of installing and communicating with a Pole mount Boomerang voltage/current/power sensor (Figure 1). The pole mount option includes a rugged, weatherproof NEMA 4X…
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…