FEATURE UPS & STANDBY POWER
Power generation standby solution for Lake Michigan plant
firm MWH acting as a consultant on the project, Cummins Power Generation installed a 1,750kW DQKAA 4,160V weather-protected, fully enclosed generator set with ‘Quiet’ rated sound- attenuated housing, DMC300 Digital Master Controller, 5kV switchgear, and 5kV on-site load bank. The whole system, owned by Waukegan Public Works, operates automatically. Accomplishing the installation required
Cummins Power Generation provides emergency standby power for a water treatment plant on Lake Michigan, in Waukegan, Illinois, USA
L
ocated on Lake Michigan, 40 miles north of Chicago, Waukegan has an
expanding city population, good transport links, and an active marina. Its once industrial lakefront is extensive, and in the 21st century, it represents a significant opportunity for redevelopment and improvement. The North Lakefront is to be restored to
10 MARCH 2017 | ELECTRICAL ENGINEERING
become a regional environmental and recreational asset, where clean land, air and water will enhance ecological restoration and wildlife protection. The South Lakefront will develop as a residential district with neighborhood retail. In between is the marina and the North Harbor area which is planned to become a mixed use district, including residential development and marina- related businesses. Right at the southern tip of the North Harbor area, surrounded by greenery and facing the marina, is the Waukegan water treatment plant, occupying a building that has stood on the site for almost a century. Waukegan Public Works was looking for an emergency backup power solution for the treatment works, and recognised that selecting a solution based around Cummins Power Generation equipment offered a number of advantages. Cummins had the ability to provide a
fully integrated generator backup system at a competitive price. The service capabilities of Cummins compared very favourably to other bidders. Other suppliers were unable to meet the level of technician training and performance, nor match the long-term maintenance plans offered by Cummins. With global water and natural resources
careful planning and a lot of attention to detail, because the plant is not a typical water treatment site. The age of the plant building was one consideration, another was how to support the weight of the equipment. The site for the generator set and the switchgear house was close to the shoreline, which meant sandy ground. The solution was found in the form of multiple concrete pillars that provide the pad on which to sit the necessary support. The DMC300 Digital Master Controller system was mounted in the outdoor housing right next to the medium voltage switchgear – something the customer has found to be very convenient, according to Brian Andersen, plant superintendent. “The great value for the customer is
that from a single location they are able to see everything going on in his generator system,” Andersen explains. “We can manually initiate testing sequences, view the closed transition transfers with the utility and control the electrical loading of the permanently installed load bank, all on-site.” The ability to do closed transition
transfers back to utility power is also a big plus in Andersen’s opinion: “It’s impressive that the load transfer from the generator back to utility power is seamless, meaning we don’t have to go around and restart our pumps or process. This is a big savings in labour and headaches for us.” Thanks to the Cummins Power
Generation solution, the water treatment plant can discretely continue its job, with its source of operating power secured, while the plans for redeveloping Waukegan’s stretch of the Lake Michigan shoreline can continue around it.
Cummins Power Generation T: 08705 329202
www.cumminseurope.com
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