The use of distributed generation has witnessed a dramatic increase over the past decade. The two most popular of these – solar and wind – provide a unique set of…
White Papers
Browse our library of power quality technical resources.
411 white papers
Introduction to Harmonic Bar Charts
The presence of harmonics in the voltage delivered to homes and businesses is pretty much a given due to the increase in non-linear loads in use today. These loads include…
Using the Revolution Cell Antenna Kit
In this White Paper I address the installation and use of the Revolution cell antenna kit (Shown in Figure 1), including some of the questions customers have about antenna selection…
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…
Understanding PMI Data Record Types – Part 2
The job of any power monitor is to record all interesting data, and leave unrecorded the vast majority of boring, unremarkable data. The tricky part for a monitor is deciding…
Getting Started with Stripchart Analysis in ProVision
Stripchart data, also known as trend or interval data, is often the most important information in a power quality recording. The bulk of the recorder memory is dedicated to it,…
Voltage Unbalance with Canvass
Voltages are rarely perfectly balanced in three-phase systems. Although small unbalances are not usually a problem, if this unbalance becomes too great then the unbalance can cause problems especially for…
Using the Properties Panel to Enhance Graphs and Annotations
The properties panel in ProVision is a feature that is often overlooked but can greatly enhance the utility of graphs when preparing them for reports and presentations. By changing the…
Oscillatory Transient Ring Frequency
This white paper provides details on how to estimate ring frequency caused by resonances formed between power corrections capacitors and inductive loads using ProVision. Waveform data captured using PMI's Eagle…
Voltage Notching in IEEE Std. 519-2014
In this white paper, I cover the new IEEE Std 519-2014 limits for voltage notching, how these limits are calculated, and how to use ProVision to make the notch measurements.…
Updates and Changes Made to the IEEE 519 in the 2014 Release
On August 12th, 2014, the IEEE Standards Association updated their 519 standard for Harmonic control in electrical power systems. One of the first things you will notice about the updated…
Using Bluetooth with PMI Recorders
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…
