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October 13th, 2017

APTA EXPO 2017 - the year of the electric bus

Back from APTA 2017 in Atlanta. It was a great event to continue developing existing relationships and forge new ones ...more

September 15th, 2017

REO-USA at the APTA EXPO 2017 in Atlanta, Georgia.

REO-USA is exhibiting at the APTA EXPO 2017 October 9 - 11 2017 in Atlanta, GA.
We are exhibiting our latest technology of Components for Railway applications. ...more

August 29th, 2017

REO-USA at the Corrosion Technology Week (CTW) in Indianapolis, Indiana

REO-USA is participating in the Corrosion Technology Week 2017, September 10-14 2017 ...more

REO-USA - News

► REO-USA introduces next generation of current transducers for all industrial applications

August 25th, 2016

After developing highly successful technology used specifically for railway engineering, REO-USA is now introducing a new generation of closed loop current transducers.

The WKO-2C series is designed for use in all industrial applications and assures improved current measurement accuracy of better than 0.5% in the whole frequency range of DC to 120 kHz. It can be used in various applications such as variable frequency drives, servo motor drives, uninterruptable power supplies, and all types of switched mode power supplies and power supplies for welding applications, to name a few.

WKO-2C frequency response

REO-USA's frequency response in the +/- 0.5% range with double core technology compares favorably to a competitor's higher range.

"What we learned from our first series was implemented to develop the WKO-2C series for a wide range of applications. Our patented double core technology is a tremendous benefit. It has outstanding accuracy and frequency response and is more affordable than what was initially developed in the WKO-2C-B series," remarked Alex Ward, Technical Sales Engineer for REO-USA. "Similar technology is available in the marketplace, but none offers higher accuracy than our double core technology."

Double core technology for WKO-2C
Double core technology for the new WKO-2C series of current transducers for many different industrial applications

The WKO-2C series from REO-USA employs the latest hall effect elements, with an extended frequency response up to 120kHz and highly accurate phase response. The hall effect sensor is integrated into the core instead of the air gap like previous designs. Two cores are joined together, and the compensation effect of the two cores reduces interference from external magnetic fields. These attributes substantially improve accuracy and frequency response.

Ward said that a typical hall effect single core sensor works well for lower frequencies, but as frequencies increase and in-turn response errors increase as well, the double core technology really shines.

"The double core technology significantly reduces errors throughout the entire frequency range," concluded Ward. "This allows users to be confident in the measured values and more effectively monitor their overall system performance."

WKO-2C series units offer an electronics package with superior drift compensation and an extended temperature range from -40° C to 85° C. All materials are manufactured using UL listed materials, and modular plates provide universal mounting options.