Vfd (variable-frequency drive) - Articles - Page 4

Here are 10 opportunities for contractors to help their industrial refrigeration clients increase their systems' efficiency, along with the cost, operational risk, and overall value.

Industrial Refrigeration: Big Systems Equal Big Opportunities

10 Tips to Increase System Efficiency

June 1, 2015

Industrial refrigeration customers can benefit dramatically from the expertise and advice of a knowledgeable refrigeration contractor. These larger refrigeration systems present tremendous opportunities for energy efficiency improvements that can lead to significant operational savings.

April 10, 2015: DrivePak Earns Top Product of the Year Award from Environmental Leader

DrivePak Recognized for Delivering Energy, Environmental Benefits

April 10, 2015

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NexRev Inc., a manufacturer of performance-improving energy efficiency upgrades for HVAC equipment, announced that its flagship product, DrivePak™ HVAC Efficiency Upgrade, received a Top Product of the Year Award in the Environmental Leader Product & Project Awards.

Schaffner EMC Inc.: Harmonic Filter

February 16, 2015

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The ECOSine® Active 30/50/100A is a harmonic filter that provides harmonic compensation in real-time.

Taco: Pump with Variable Frequency Drive

December 23, 2013

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The Taco SelfSensing Series with ProBalance™ integrates Taco KV or KS pumps with a variable frequency drive. The pumps allow the installer to accomplish easy do-it-yourself system balancing for both constant flow central plant applications and variable flow building distribution applications.

Whenever possible, Greg Crumpton, president and founder of AirTight Mechanical Inc., Charlotte, N.C., said he prefers to add a grounding brush to VFD-driven motors. (Photo courtesy of AirTight)

Preventing Electrical Fluting in Motors

Ceramic Ball Bearings, Shaft Grounding Rings Help Mitigate Damage

Jen Anesi

December 9, 2013

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While variable-frequency drives (VFDs) boast increased energy efficiency as the main benefit, a small — but by no means insignificant — percentage of the drives are causing major problems in the motor they control.

Nov. 14, 2013: AHRI Launches Certification Programs for VFDs and Datacom Cooling

AHRI Manages 40 Performance Certification Programs for HVACR and Water Heating Products

November 14, 2013

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The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) has announced two new certification programs for variable frequency drives (VFDs) and datacom cooling (DCOM) equipment.

Congressman Talks Energy with Danfoss

Discusses Legislation to Advance Energy-Efficient and Renewable Energy Technologies

September 2, 2013

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U.S. Rep. Adam Kinzinger, congressman for the 16th Congressional District in Illinois, recently visited the Danfoss plant in Loves Park, Ill., within his district.

Bell & Gossett®, a Xylem brand: Integrated VFD With Sensorless Control

June 24, 2013

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According to the manufacturer, the variable-speed drive sensorless controller utilizes the latest generation hardware platform with advanced pumping software and proven algorithms to create a smarter, more cost-efficient, and energy-saving pump system for HVAC and pressure-booster applications.

To enhance conductivity, the motor shaft adjacent to the end bracket was coated with AEGIS colloidal silver.

Sustainability in Shaft Grounding Rings

April 15, 2013

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Variable-frequency drives (VFDs), also known as inverters, are widely used because they save energy, especially in applications with variable-torque loads.

preventing bearing damage in small motors

The Need for Bearing Protection for Inverter-Duty Motors

Adam Willwerth

February 4, 2013

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All major manufacturers of three-phase ac induction motors offer “inverter-duty” or “inverter-ready” models, but while these motors have inverter-rated insulation to protect the windings, the bearings — their most vulnerable parts — are too often ignored.