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The 911 Emergency Center in Gaithersburg, Maryland

Two emergency generator sets and paralleling switchgear were needed for the Gaithersburg Maryland Emergency (911) Operating Center. Reliability was one of the highest priorities.

Curtis Engine & Equipment, Inc.
CDCI of Silver Spring, Maryland was contracted by Montgomery County to complete this design and building project. CDCI selected Electric Advantage of Rockville, Maryland to install the equipment and Curtis Engine & Equipment to provide the equipment and complete its startup.

The project featured two Ellioot Power Systems 780kW generators powered by Mitsubishi diesel engines, an 800 ampere automatic transfer switch and synchronizing switchgear as provided by Automatic Switch Company (ASCO).

Ziba Parsa, President of CDCI said, “We have done several large projects with Curtis Engine in the last two years. Each has been completed successfully, in a timely manner and on budget. We have been pleased with their performance and hope to do more projects together in the very near future.”

Elliot Power Systems emergency generators sit side by side. The system is designed for the two generator sets to run independently or in parallel with each other. Montgomery County fire and safety regulations also require the use of a Fireguard fuel tank. A 5400 gallon Fireguard tank was supplied for the project.


Switchgear and automatic transfer switch lineup at the emergency center.


MTU Onsite Energy and Dresser Waukesha