Harmonic Filters
Non-linear loads
such as Adjustable Speed Drives, 6-pulse Converters, Uninterruptible
Power Supplies, etc. are likely causes of damaging harmonics in your
system. These harmonics contribute to problems such as blown fuses,
overheating of equipment, misfiring of AC and DC drives, to name a few.
Myron Zucker, Inc.
has developed both automatic and fixed harmonic filtering products that
are designed to eliminate or reduce harmonics in your electrical system.
http://myronzucker.com/harmonicfilters.html