DVIDS – News – Photo Essay: Fort McCoy Works With Utilities to Improve Power Grid

Contractors are shown completing electrical work in March and June 2022 on South Post in Fort McCoy, Wisconsin.

Fort McCoy and Xcel Energy are changing the existing power grid from a Delta power system to a Wye power system, Fort McCoy Department of Public Works officials said.

Wye is a three phase electrical system which uses one wire for each electrical leg and a separate neutral wire.

Delta is also three phase, but uses one of the legs as a neutral, so it only has three wires. Work will continue throughout the year.

Brandon Gronau, Fort McCoy Public Works Operations and Maintenance Branch, Energy Division, discussed the work in progress.

“We – Fort McCoy and Xcel – are transitioning from a Delta power system to a Wye power system,” Gronau said. “The basis of it is just the way the system is wired. Wye is a three phase electrical system which uses one wire for each electrical leg and a separate neutral wire. Delta is also three phase, but uses one of the legs as a neutral, so it only has three wires.

Gronau said Xcel wanted to do this because they are the subcontractor for the electrical privatization of the facility and own all the electrical infrastructure on site.

“Delta can be an unreliable and outdated system,” Gronau said. “We are the only Delta system that Xcel has in the state, so in order to standardize all of their equipment, they made the decision to change us as well.”

Gronau said the change was good for the facility, especially for the future.

“Fort McCoy’s role in all of this is resilience,” Gronau said. “Because Xcel is changing everything anyway, we have decided to move all of our overhead power that is inside the cantonment area underground as part of our move to make Fort McCoy more energy resilient. So it makes sense to do it all at once. We chose to only do the cantonment area, so they were replacing the South Post poles to upgrade the infrastructure to support the change. »

Fort McCoy’s motto is “Total Force Training Center”. Located in the heart of the Upper Midwest, Fort McCoy is the only US Army installation in Wisconsin.

The installation has provided support and facilities for the field and classroom training of more than 100,000 service members of all services nearly every year since 1984.

Learn more about Fort McCoy online at https://home.army.mil/mccoy, on the Defense Visual Information Distribution System at https://www.dvidshub.net/fmpao, on Facebook by searching “ftmccoy” and on Twitter by searching for “usagmccoy”.

Also try downloading the Digital Garrison app on your smartphone and set “Fort McCoy” or another facility as your preferred base.







Date taken: 28.06.2022
Date posted: 28.06.2022 15:44
Story ID: 423970
Location: FORT MCCOY, Wisconsin, USA





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Jack C. Nugent