Based upon the critical need for standby power, we recommended the Village consider two smaller 750 KW generators as opposed to a single 1,250 KW generator. We raised concerns that a single generator or transfer switch malfunction or failure would completely disable the main Booster Plant water supply facility. A cost analysis was performed which incorporated costs of equipment, shipping costs, installation costs and determined two smaller generators and associated two smaller transfer switches could be installed for approximately the same cost as a single larger generator and transfer switch. The electrical distribution system was redesigned to put half the critical loads on a dedicated Motor Control Center connected to each generator. Each Motor Control Center had the ability to re-feed each other through a series of molded case switches in the event of a generator/transfer switch failure maintaining at least 50 percent plant load, which is sufficient for emergency backup power requirements.
We designed the Village-wide water supply SCADA system which provided all water supply control and monitoring for the entire Village, and monitored generator and transfer switch status and alarms. A utility to utility transfer switch was designed to feed the SCADA control system loads which automatically switched between both utility services and both generators to provide system reliability in the event of failures.
We also designed the SCADA system to remotely control and monitor the iron removal plant and backup 350 KW diesel generator. Both the Iron Removal Plant and 350 KW diesel generator were designed by H2M.
