Power Quality is defined as any power problem manifested in voltage, current, or frequency deviations that result in failure or misoperation of utility or end user electrical device equipment. Power Quality mitigation is no longer an option in our modern interconnected society, it is absolutely critical. From microwave relay towers feeding data, modern data management (ISP) and communications centers, telecommunications networks, industrial, commercial and institutional power systems - they all demand uninterrupted, uncorrupted electric energy from electrical utilities. Power failures are expensive and can significantly impact the bottom line of an organization. There are a wide variety of power quality problems in the common electrical load, including: voltage fluctuations, voltage sags, under-voltage, voltage swells, over-voltage, voltage transients, surge currents, voltage interruptions and outages, harmonic voltage distortion, harmonic content distortion, low power factor, electromagnetic interference (EMI / RFI) and voltage notching. Most harmonic problems can be detected through measured waveforms, and then further quantified by additional measurements such as harmonic spectrum, power data, voltage and current magnitude measurements, etc. Electrical engineering and maintenance personnel have long been aware that identifying, monitoring and correcting power quality and grounding problems is vital to keeping facilities and power distribution systems running smoothly. Our Power Quality Channel provides you with the latest information about poor power quality issues, power quality problems, poor power factor, power conditioning and electronic device technologies, power quality companies, power analyzer and power quality applications available in the marketplace today. We have leading articles on wave shape, phase power, sine wave, linear loads, etc.
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