The rapid deployment of electric vehicle (EV) charging infrastructure is reshaping electric distribution systems in North America. This white paper provides a focused technical overview of EV charging technologies, emphasizing…
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98 results for “PQ Canvass” — Clear
New ProVision Release for Handling Large PQ Recordings
With the introduction of the cell Guardian, 1 GB of memory in a PQ recorder is increasingly common. Although the resulting large files can provide a wealth of data, they…
Advanced Daily Profile Analysis with Canvass
The Daily Profiles graph is likely one of the most underutilized Canvass graphing features. This particular graph is great for identifying long term (and even short term) trends, many of…
Revolution Access via the Canvass Web Interface
PMI is excited to announce support for Revolution analyzers in Canvass, our cloud-based data analysis software. Utilizing Revolutions with Canvass makes it possible to view graph types that are not…
Event Capture and Analysis with Merlin™
This white paper provides an overview of the Event Capture function available with PMI power quality analyzers and introduces the Event Change Report, generated by Merlin™, PMI's AI-powered analysis assistant.…
High Order Harmonics
Harmonic Distortion has long been recognized as a primary concern in power quality, traditionally monitored only through the 51st harmonic. This boundary was sufficient for decades, when most nonlinear loads…
Visualizing Loose Neutrals with RMS Capture Graphs
Loose neutrals represent one of the most hazardous and subtle single-phase service issues encountered by utility power quality (PQ) engineers. The condition arises when the neutral conductor connecting the center…
Voltage Regulation: Standards-based Compliance
Voltage regulation—the ability to maintain steady‑state RMS voltage within acceptable bounds—affects equipment performance, protection, and customer experience. Distributed energy resources (DER) add complexity via bidirectional power flow and daytime voltage…
Voltage Sag Analysis: Standards, Testing, and Compliance
Voltage sags, short-duration reductions in supply voltage, pose significant challenges to electrical and electronic equipment, leading to malfunctions, shutdowns, and substantial economic losses across industries. IEEE Std 1668-2017 and SEMI…
Symmetrical Components
Power systems ideally operate in a balanced state, with equal voltages and currents across all phases. However, real-world scenarios often involve unbalanced conditions that can degrade power quality. Symmetrical components…
Detecting Loose Neutrals
A loose neutral is not obvious to the naked eye but can lead to significant damage. The symptoms vary widely, and proper detection is essential to mitigation. This paper gives…
Sizing a Backup Power Source
Sizing a backup power source is tedious. In an ideal world, every piece of equipment you need to protect would come with a spec sheet correctly detailing its power needs.…
