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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Posts Tagged ‘electrical system’
Harmonics current mitigation of electrical system
May 4th, 2009 | 9 Comments | Posted in Power qualityTags: active filters, distribution system, electrical system, harmonics, light dimmers, passive filters, variable speed drives
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.
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