Safety and Emergency
Harmonic Filter for Personal Computers Part 1: Passive, Parallel-Connected Series Resonant
(48 KB) - 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
(228 KB) - 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
(192 KB) - 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
(784 KB) - A technical brief on using line reactors to reduce harmonics and transient voltages on the line side of adjustible speed drives.
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Is Power Quality Important?
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What is Power Quality?
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Hawaii's Energy Future
West Oahu Air Quality