Power Quality

Publications

We provide a brief discussion of one or two timely PQ topics. More information on the topics will be provided as a document that can be viewed and/or printed as an Adobe (pdf) file for your use.

Current Topic

Testing of Plug-In Transient Voltage Surge Suppressors (TVSS) 

Upcoming Topic

Harmonic Filter for Personal Computers -font Part 2: Passive, Series-Connected Parallel-Resonant

Past Topics Description
Harmonic Filter for Personal Computers Part 1: Passive, Parallel-Connected Series Resonant Part 1 of a 2-part series that deals with using filters to reduce harmonic current distortion caused by personal computers on a common branch circuit.
Everything You Wanted To Know About Harmonics (But Were Afraid To Ask) Part 1: A Few Basics Part 1 of a 2-part series that deals with the significant issue of harmonics in power quality and how they affect electronic equipment.
Everything You Wanted To Know About Harmonics (But Were Afraid To Ask) Part 2: Advanced Topics Part 2 of a 2-part series that deals with the significant issue of harmonics in power quality and how they affect electronic equipment.
Motor Bearing Currents and Adjustable Speed Drives A technical brief on bearing currents and how it may lead to preventable mechanical failure for motors in adjustable speed drive applications.
Line Reactors and Adjustable Speed Drives A technical brief on using line reactors to reduce harmonics and transient voltages on the line side of adjustable speed drives.