Symmetrical components can be useful in a PQ investigation, especially in cases of voltage imbalance, where the customer's negative sequence current can help determine their contribution to the imbalance. Many…
Power Quality White Papers
Power quality white papers on Power Quality.
206 white papers in Power Quality
Record, Diagnose and Troubleshoot Oscillatory Transients
Oscillatory transients are caused by switching operations, nearby lightning strikes, or other impulsive noise exciting electrical resonances present on the network. The most common in the distribution system is defined…
Using PQ Canvass
PQ Canvass is an advanced cloud-based software application that enhances power quality analysis. PQ Canvass revolutionizes power monitoring with its comprehensive browser-based functionality, eliminating the need for additional software, and…
Residential Interharmonics
Interharmonics are produced when loads draw currentasynchronously to the utility voltage. Traditional loads include arc furnaces, welders, and AC-DC converter systems where the loads are fed from DC supplies. Historically…
Induction Motor Soft-Starters and Effects on Power Quality
This white paper describes using a motor soft-starter to reduce the effects of line changes due to high current in-rushes on AC induction motors. We'll start with the basics of…
Distributed Generation Power Quality Standards
The dramatic proliferation of Distributed Generation (DG) deployments began before power quality (PQ) standards were in place to ensure compatibility in the grid. IEEE 519-2014, a recommended practice for limiting…
Variable Frequency Drives and Harmonics
Abstract A VFD, or Variable Frequency Drive, is a device which takes in a 3 phase AC signal and outputs a somewhat arbitrary waveform using pulse width modulation. This is…
PQ Monitoring for Controlled Environments
The Tensor is an innovative PQ analysis tool introduced by Power Monitors. Inc. Equipped with cellular and WiFi communication options, the Tensor allows for continuous measurements wirelessly streamed for analysis…
Best Practices for Photovoltaic Monitoring Setup
The increasing development and use of solar power generation using Photovoltaic (PV) systems introduces new power quality perspectives and challenges. Understanding common analytic avenues with regard to PV systems can…
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.…
Introduction to Voltage Sags
Voltage sags are short-duration power quality nuisances that can wreak havoc on sensitive electrical equipment. Identifying and classifying sags (as well as identifying their sources) can be a tedious and…
PQ Canvass — Getting Started
Power Monitors’ PQ Canvass is the premiere way to view and analyze power quality data. Born from Canvass, our first generation cloud-based system, PQ Canvass is a power platform to…
