Upgrading Master Substation

Workers are rerouting some of the electrical power that usually passes through Master Substation, making it more accessible for repairs and long-term upgrades. Photo: Fermilab

The Master Substation Bypass Project is the first phase in upgrading the lab’s high-voltage electrical power distribution system.

The lab runs two on-site electrical substations, the 45-year-old Master Substation and the 15-year-old Kautz Road Substation. Fermilab normally operates with both substations in service. During times of outage and maintenance on Master Substation, power is routed from Kautz Road Substation to areas normally served by Master Substation. The route that power takes includes portions of Master Substation. This route through Master Substation does not allow for a complete shutdown for maintenance and repair without incurring site power outages.

This project will isolate Master Substation from electrical power when running off Kautz Road Substation, making it more accessible for repairs and long-term upgrades.

The second phase of the upgrade will replace the aging Master Substation under the Science Laboratories Infrastructure program’s FNAL Utilities Upgrade Project in the near future. This project will also provide for the upgrade of the lab’s industrial cooling water system.