Why harmonics problem? 3 types of solutions! How to make a choice ? Any software tools ?
Typical distorted current waveforms
Posts Tagged ‘harmonics’
Harmonics overview
October 12th, 2009 | 4 Comments | Posted in Power qualityTags: active filters, harmonics, passive filters, Power quality, Power quality meter
Harmonics current mitigation of electrical system
May 4th, 2009 | 8 Comments | Posted in Power qualityTags: active filters, distribution system, electrical system, harmonics, light dimmers, passive filters, variable speed drives
When professionals want to manage an electrical system in a new installation or after retrofit or extension of an existing installation, it is important to consider the Harmonic currents emitted by the non linear loads connected to the distribution system.
The non linear loads or products producing harmonics can be as example, for industrial equipments: welding machines, battery chargers, variable speed drives for electrical motors, uninterruptible power supplies, or for office equipments or household appliances: TV sets, fluorescent lighting, light dimmers, etc…
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How green are Compact Fluorescent Lights (CFLs)?
April 27th, 2009 | 24 Comments | Posted in Energy Efficiency - lighting, Energy Efficiency - newsTags: CO2 emission, compact fluorescent light, electricity savings, fluorescent bulbs, harmonics, sustainable development
Back on this subject…
Some countries and states like Australia, California, and the European Union plan in the near future to ban incandescent light bulbs, to the benefit of Compact Fluorescent Lights, Lamps (CFLs).
There are two main advantages given by Fluorescent bulbs (CFLs) : …
Harmonic filter for better power quality
April 16th, 2009 | 26 Comments | Posted in Power qualityTags: DC motor, electrical system, harmonics, power factor, Power quality, uninterruptible power supplies
Power Quality Optimization with Active Harmonic Filter :
It is widely believed that active harmonics filters (AHF) are very costly and, therefore, are the last choice for power quality solutions. The answer is it depends. Every harmonics mitigation and power factor correction device has its place in the market.
