This paper explains some of the issues concerning power factor correction, and the side-effect of resonances that can be detrimental to a power distribution system. Also are some solutions to…
White Papers
Browse our library of power quality technical resources.
185 results in Power Quality — Clear
Power Quality
New Graph Templates for Flicker Analysis
Voltage flicker is one of the most visible and common residential complaints, yet one of the most challenging to quantify and address. The IEEE 1453 flicker standard defines some important,…
Power Quality with the Significant Change Graph
The Significant Change graph shows single cycle measurements, with one second resolution in a single graphical time series trace. This graph of the triggered Significant Change record type is especially…
Understanding IEEE IEC Flicker Processing
Flicker measurement has improved dramatically with the advent of the flicker measurement techniques described in IEEE-1453/IEC61000-4-15. It is a feature found in many power quality monitors that makes flicker measurement…
Loose Neutral Graph Template
A "flickering lights" customer complaint may be the first symptom of a dangerous loose/open neutral. Loose neutrals can cause high voltage equipment damage, and in extreme cases, excessive current flow…
Understanding Parametric Graphs
Parametric graphs present a little-seen view of load waveforms. By graphing the current waveform against the voltage, a voltage-independent load signature can be established. This is useful for characterizing load…
Using Standard Deviation To Get More from Daily Profiles
The Canvass power quality portal provides the user many different tools for analyzing voltage, current and power over considerable periods of time. One such tool is the Daily Profile Graph,…
Strategies for Investigating Flicker
Investigating flicker issues with PMI recorders can be straightforward if the right data is collected, and analyzed with ProVision. By enabling and examining Pst and IFL flicker data, in addition…
Understanding Real, Reactive, and Apparent Power
This white paper defines the differences between Real Power, Reactive Power, and Apparent Power in terms used by the power distribution industry. Here the relationships between these different types of…
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…
Ring Frequency, PF and CF from Waveform Capture
With the Point Table in the Waveform Capture function of ProVision, it is possible to estimate the ring frequency, phase shift, power factor, and crest factor of a waveform.
Understanding the Harmonic Analysis Report
Harmonics are distortions in the 60Hz voltage or current caused by non-linear loads on the system. Harmonics are of interest to utilities as they can cause damage to equipment, such…
