As hardware improvements are made over time, the software that communicates with and controls that hardware must also evolve. Improvements in hardware, operating systems and most importantly, user feedback all…
White Papers
Browse our library of power quality technical resources.
161 results for “Revolution” — Clear
Separating Transmission vs Distribution Events with Canvass
The combination of Canvass and Boomerangs strategically placed in a distribution system allows for a unique system-wide analysis of voltage trends. Analyzing voltage data from multiple locations in parallel reveals…
Threshold Configuration Settings in Canvass
The settings configuration window is a new feature in PMI's Canvass web software. It allows the user to set thresholds for each channel and measure supported by the recorder. When…
Analyzing Apparent and Reactive Power Using Canvass
Canvass, PMI's cloud-based data analysis portal, has recently been upgraded to provide the facilities for apparent and reactive power analysis for plug-in and meter-socket form 2S Boomerangs. This white paper…
Vector Diagrams for Commonly Used Power Circuits
This white paper describes vectors and vector diagrams. It provides the vector diagrams and sketches of the connections required for correctly installing a power monitor on commonly used power circuit…
Two Minute Countdown
Prior to recording, PMI recorders have a countdown interval of time used for initialization called the "Two Minute Countdown". This period of time is used to verify proper hookup, change…
Monitoring Variable Frequency Drives
Variable Frequency Drives (VFDs) are increasingly common, especially with the push for energy efficiency (in residential applications) and better motor control (in industrial applications). Unfortunately, the gains made with VFDs…
Understanding Recording Modes
Recorders connected in ProVision have two primary modes: Standby mode and Ready mode. Each of these modes has a distinct purpose, and some recorder operations in ProVision require the recorder…
CBEMA and ITIC Curves
The CBEMA and ITIC curves are both used to visibly represent voltage events. The terms and associated curves are used somewhat interchangeably even though there are subtle differences between the…
Understanding IEEE Flicker, IFL, Pst, Plt
This white paper covers and explains three of IEEE's most common Flicker definitions: IFL, Pst and Plt. The GE Flicker Curve and how other measurements standards compare to the GE…
Measuring Frequency with PMI Recorders
Line frequency is the most tightly controlled parameter in the electrical distribution system. Since almost all generation in a region is connected essentially in parallel, the frequency is inherently synchronized…
Monitoring a 2½ Element Wye
A 2½ Element WYE Configuration uses 3 current phases and 2 voltage phases to calculate what is on the third voltage phase in order to measure the total power on…
