Variable speed drive energy savings

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The use of variable frequency drives on variable torque loads for the purpose of gaining energy savings is a common application. Variable frequency drives operate as load controls within applications that may accomplish up to 50% reduction in energy costs. In general, an electric motor will turn at a rate proportional to the frequency of the alternating current (AC) applied to it. The majority of Variable Frequency Drives in the market today contain electronic circuitry that converts a 60Hz Line power into direct current. The VFD converts this line power into a pulsed output voltage that duplicates varying alternating current to a desired frequency.

In our ever growing world of technology variable frequency drives have over the past decade allowed to become a cost efficient way to reduce energy costs and increase system efficiencies. Today manufacturers around the globe within a wide range of industries are finding more ways to apply variable frequency drives to their manufacturing equipment.

From past experience, smaller HP drives typically fail in eight years and are more often replaced rather than repaired. Larger HP drives last longer by virtue of repairs that often require replacement circuit boards and other components. After bearing the cost of two or three replacement boards in any one drive, the user often realizes that the drive should have been junked sooner.

For an even more in depth explanation of Variable Frequency Drives go to Wikipedia.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]