• KCS seeks $100 million RRIF loan to help fund Texas trackwork (6/6/2007)

9/8/2016

REO-USA: Closed loop current transducers

REO-USA has introduced 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 percent in the whole frequency range of DC to 120 kHz, the company says.

It can be used in various applications such as variable frequency drives, servo motor drives, uninterruptible power supplies, and all types of switched mode power supplies and power supplies for welding applications.

"What we learned from our first series was implemented to develop the WKO-2C series for a wide range of applications," said Alex Ward, a technical sales engineer for REO-USA. "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. Similar technology is available in the marketplace, but none offers higher accuracy than our double core technology."

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, the company says.

A typical Hall effect single core sensor works well for lower frequencies, but as frequencies increase and in-turn response errors rise as well, the double core technology "really shines," added Ward.

"The double core technology significantly reduces errors throughout the entire frequency range," he said. "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.

For more information visit www.reo-usa.com.