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  • Braking and Regenerative Energy with AC Drives
    What is Regenerative Energy? When a motor turns faster than the commanded speed as set by its AC variable speed drive, the motor in effect acts as a generator. An example of this would be the control of an elevator car as it descends. With the help of gravity, the load will readily lower. In fact
  • Energy-Saving Potential of Solid-State AC Drives in VAV Systems
    Centrifugal fans are used on many industrial and commercial applications. Many of these fans are operated at fixed speeds, but could provide energy savings through adjustable speed operation. Reviewing the affinity laws for centrifugal fans and a typical operating cycle for a centrifugal application
  • Using Regenerative Converter Units to Recover Over Voltage Energy in AC Drive Systems (.pdf)
    Regeneration occurs in an AC variable frequency drive system when the load overhauls the motor. This can occur when trying to decelerate the load, or when some external force causes the motor to overhaul, causing the motor to act like a generator. The energy contained in the rotating equipment
  • AC and DC Drives: Drive Heat Dissipation and Enclosure Sizing
    This is an upgrade of the Application Notes Binder Article 1B. This upgrade reflects the latest product offerings from Reliance Electric Standard Drives. AC and DC drives are very efficient devices. AC drive efficiencies are >= 95%, while DC drive conversion efficiency is often over 98%. Even
  • The Drive for Simplicity: Defining Trends in Motor Drives
    By Ilpo Ruohonen, Mika Paakkonen, Mikko S. Koskinen ABB offers one of the world's largest portfolios of AC drives, serving an expanding horizon of applications. With increasing demands for flexibility, reliability and ease of use, ABB has come up with a number of solutions to make life simpler
  • AC and DC Variable Speed Drives: Application Solutions
    of products. AC drives serve processing needs and industrial applications such as fans, pumps, mixers, conveyors, and extruders, plus many more. DC drives control processing equipment such as for sheet metal, material handling, and center winders/unwinders. Any drive featured in this publication
  • The Impact of Drives on the Lifespan of Appliances.
    Fuji Electric's AC Drives are features in "Driving Longevity: The Impact of Drives on the Lifespan of Appliances" in the October 2014 issue of the Appliance Design.
  • Motors and Drives: A Practical Technology Guide
    was equal to or smaller that its DC counterpart. Improvements in power electronics increased the reliability of AC drives, to the point where one would almost never hear of a drive failure upon start-up. This book is intended to de-mystify drive and motor technology, used in today's modern

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