Construct greenfield breaker-and-a-half, 345/138 kV Mount Pleasant Substation to support the new customer load from FoxConn. The substation facility includes four breaker-and-a-half bays each, for both 345 kV and 138 kV assets, surrounded by a concrete security wall. Three 500 MVA autotransformers will tie the two voltage levels, along with the required gas circuit breakers, dead-end structures, disconnect switches, and two new control houses. There will be four 138 kV underground duct packages that will feed the FoxConn PSS Substation. Also, a new 345 kV transmission line dead-end bay will be added to the Pleasant Prairie Switchyard, and its associated buswork to connect a new line to the existing bus. A protective relay panel replacement will also occur at the Elm Road Substation. In addition to Mount Pleasant, the existing Racine Substation will have a 345 kV yard expansion, 345 kV bus and equipment replacement, new control house, foundations, and a total fence replacement with new no-cut, no-climb security fencing and gates. MJE Drilling will install 232 new drilled pier foundations and flatwork in both the existing substation and the new substation expansion area. The piers range from 2 x 8.5 feet all the way to 8 x 44 feet.
customer: American Transmission Company
OWNER: American Transmission Company
PROJECT STATUS: In Progress
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200 WEST FRANK PIPP DRIVE
PO BOX 686
IRON MOUNTAIN, MI 49801
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