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April 11th, 2017

Corrosion 2017 New Orleans - A Success

REO USA was proud to display the next generation technology for Cathodic Protection ...more

February 28th, 2017

REO-USA at Corrosion 2017 - Conference & Expo

Please visit our booth at CORROSION 2017, March 26-30 in New Orleans, Louisiana. ...more

February 1st, 2017

REO AG all set to exhibit at MIDDLE EAST ELECTRICYTY Dubai

Visit us at the MIDDLE EAST ELECTRICITY, Feb 14 - 16 2017 at the at the Dubai World Trade Center, UAE - Hall H3, Booth H10. ...more

REO-USA - News

► The best of both worlds

May 8th, 2014

Increasing motor life and reducing EMI while increasing ROI

Business purchasing decisions are increasingly being made in a vicious cycle of short-termism, even under circumstances where a long term strategy may yield higher return on investment (ROI). At a time when austerity measures are leading businesses to cut costs, manufacturers can use high current line reactors to make considerable energy savings, increase motor life and reduce electromagnetic interference (EMI) issues.

There is no doubt that we are living in an era of unprecedented change and a world where competitiveness has captured the hearts and minds of decision makers. From lean and kaizen in manufacturing to third tier auditing in supply chains, the push towards reducing carbon emissions using green technology saving money is high on the agenda. The way has been paved rapid business growth and the rise of empires in the space of a few decades.

However, in some cases this change has come at the cost of a long term perspective. Traditionally the most successful businesses have been those whose strategy has struck a good balance between short term efficiency and long term return on investment.

Short term parochialism has often led companies into a vicious downward spiral. Many reputations have been left in tatters in the pursuit of price and chasing cheap, almost always by sacrificing long term quality and service.

Increased pressure to conform to legislative and corporate social responsibilities has further intensified the burden on companies to deliver high quality, on time and under budget. For instance, the eco design directive covering electric motors - EC 640/2009 - mandates that from January 1, 2015, all new motors must be equipped with a variable speed drive (VSD) by default.

Energy Saving with EMC Components
Energy saving with EMC Components

In industrial applications a VSD is often used to control the speed of a motor. This increases efficiency and provides cost savings. However, the process is not completely without drawbacks. In order to control the motor speed, the supply current is manipulated using pulse width modulation (PWM) for high frequency switching.

The resultant fixed voltage, variable frequency supply outlet, while able to control motor speed, creates unwanted EMI and harmonic currents, whose high frequencies can damage equipment. Overheating of transformers, windings and capacitors as well as interference on telecommunications equipment and metering apparatus can render equipment unusable. more

► Winning the space race - Beating the heat

April 23rd, 2014

Temperature issues and space constraints fuel demand for new, wider range of REO-USA liquid cooled Variable Frequency Drive components.

Energy savings versus fixed-speed motor technology have enabled Variable Frequency Drives (VFD)* to make their mark across a broad spectrum of industries via fan, pump and other control applications. Today an estimated 30%-40% of newly installed AC motors utilize VFD.

Nevertheless, design engineers face heightened challenges ranging from cost pressures and space limitations, to product reliability and longevity issues. The solution for many lies in bypassing traditional air-cooled drives for newer technology - liquid cooled VFDs - which, over the past several years have been emerging as the Next Big Thing.

"We're seeing a strong trend toward liquid-cooled VFDs for hybrid vehicles, HVAC, rail and marine applications, renewable energy, petro-chemical, food processing and more," reports Barbara Miller, Vice President of North American Operations for Indianapolis based component manufacturer REO-USA. She cites two key advantages:

- Liquid cooled components can reduce drive space requirements up to 70% or more

- Liquid cooling drastically lowers component surface and/or housing temperatures

Comparsion air-cooled and liquid-cooled reactors
Tested under the same load, the air cooled brake resistor runs at temperatures 70% higher than a liquid cooled REO-USA version and three times hotter than a fully encapsulated component. Liquid cooled drive components can last up to 50% longer. more

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