This white paper documents the procedure for installing a Bluetooth device and the proper communication settings for wireless PMI Recorders using ProVision software. PMI offers several power quality recorders for…
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Calculating Interharmonics with Raw Waveform Data
The Revolution PQ recorder can compute interharmonics in real-time, and also record each one individually as a stripchart. Each harmonic and interharmonic group and subgroup, as defined by IEC 61000-4-7,…
ProVision Settings for Wireless Communications
This white paper describes the proper communication settings for wireless PMI Recorders using ProVision software. PMI offers many different recorders for capturing disturbing and expensive PQ events. With the many…
ProVision Settings for Wired Communications
This white paper describes the proper ProVision settings for wired communications with PMI Recorders. PMI offers many different communication options to satisfy the needs of the industry. With many power…
Understanding Voltage Swells
If you were to ask a handful of customers what they consider a ‘power surge’ to be, you would get a multitude of answers — anything from a lightning strike…
Working with Live Data in PMI View
PMI View’s live data pages show waveforms, phasors, and tabular values from a connected device, updating as you watch, without interrupting an active recording. During initialization, the live data pages…
Detecting Loose Neutrals with Merlin™
A loose neutral is one of the most dangerous faults a single-phase service can develop, and one of the least likely to announce itself. The connection does not fail outright.…
Revolution Download in PQ Canvass
Revolution meters are compact, cellular-connected power monitors. Unlike the Tensor, Seeker, Guardian, and Bolt devices, which initiate their own uploads to PQ Canvass, Revolutions do not push their recordings to…
PQ Canvass API Access
Introduction Electric utilities rely on power quality monitoring to maintain grid reliability, meet regulatory requirements, and respond to disturbances across their distribution networks. As monitoring deployments grow — spanning substations,…
Modern Flicker Analysis Using PQ Canvass and Merlin™
Voltage flicker is one of the most common power quality complaints reported by utility customers. The term flicker refers to visible changes in lighting intensity caused by rapid fluctuations in…
Defining and Measuring Rapid Voltage Change
Rapid Voltage Change (RVC) represents a specific category of power quality phenomena characterized by a fast transition in the RMS voltage between two steady-state conditions. Unlike a voltage dip or…
High Impedance Faults: Causes, Risks, Detection Techniques
High impedance faults can be a troublesome power quality issue affecting not only utilities, but their customers too. Frequently, these faults can trip arc fault breakers and GFCI outlets and…