DC-UPS for Wavetronix sensors in Washington State

TEMPE, AZ - 09/01/2009 - Solar Traffic Controls (STC) has furnished 65 DC-style Uninterruptible Power Supplies (UPS) systems for Wavetronix sensors along the Interstate 5 corridor from Olympia to Mt. Vernon, Washington.

The project consisted of two types of DC-UPS systems depending on what was available at each site, 480VAC or 240VAC. STC worked closely with Advanced Traffic Products (ATP) to create a viable solution to power Wavetronix sensors and radio equipment. Using a solar-powered system was initially considered yet given the poor sunlight levels in Washington, it was not cost efficient to go solar with this particular application.

The DC-UPS systems consist of a step-down transformer (only for the 480VAC systems); a 7 amp marine-grade battery charger; a low battery disconnect device; a valve-regulated, gelled-electrolyte battery; color coded wiring; and a power distribution terminal block. All this equipment was enclosed in a 2B aluminum, NEMA 3R equivalent enclosure designed to be band mounted to a pole or post.

The battery in the UPS system is charged nightly, when AC power is available, and the battery is used to provide power to the roadway sensor equipment continuously. The roadway sensor equipment included Wavetronix and radio equipment supplied by ATP.

Information on Advanced Traffic Products and their products can be found at www.advancedtraffic.com. For more information about Traffic Sensor Power Systems see our Product Line at Product Line.

About Solar Traffic Controls
Solar Traffic Controls (STC) designs and manufactures solar-powered traffic control systems for city, state and federal DOTs. Its primary products are solar-powered flashing beacon systems used for school zones and 24-hour applications. Go solar: STC's equipment and services will save you time, effort and money.