Harmonic Control Situation Before And After The Crystal Growth Furnace Energy
- Details
- Category: Molybdenum & Sapphire Growth Furnace News
- Published on 20 November 2013
- Written by Cloudy
- Hits: 298
Harmonic control before crystal growth furnace is running at 40kW or so field test data, through analysis shows before performing harmonic control reactive power 77.9kVar, depending on the 
Power 89.1kVA, power factor 0.486, voltage 217.6V (phase voltage), the maximum voltage harmonic distortion rate of 7.9%, current rms 136.5A (average), the current maximum rate of 76.3 percent harmonic distortion. Harmonic control after the field test data shows the harmonic treatment, the crystal growth furnace reactive power dropped to 57.8kVar, apparent power dropped to 72.8kVA, power factor rose to 0.608, the voltage 218.1V (phase voltage) , voltage harmonic distortion rate dropped to a maximum of 3.1%, current rms down 111.2A (average), current harmonic distortion rate dropped to a maximum of 2.8%.
Crystal growth furnace input harmonic APF after treatment, the parameters are to meet or exceed national standards, including current harmonic distortion rate of 76.3% never before treatment to minimize the distortion rate of 3.0%, reducing the current and voltage harmonic distortion rate and improve the power factor, reduce line losses and transformer losses, reduce fever and other cable lines, reducing the impact on other equipment to improve the crystal quality, increase the yield of sapphire crystal.
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