City of Naperville, IL • IL • opengov

Tollway 34kV Switchgear Building

Posted Feb 16, 2026Closes Mar 16, 2026Status: currentSolicitation (Attach a Document)

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Summary

City of Naperville is modifying their existing Tollway Substation to include the installation of a new masonry building that will house new 34.5kV indoor switchgear and associated control equipment. This building has been designed by others and the specification and drawings will be attached to this bid. This bid is being issued to procure the supply and construction of the new 34.5kV switchgear control building.

Full description

The City's Tollway substation has seen several 34.5kV bus flashovers on both buses over the last couple of years. The primary cause of these failures was determined to be the amount of salt spray contamination, from the adjacent tollway, that forms on the bus insulators. Regular cleaning has proven ineffective and requires labor intensive periodic maintenance. As such, the Utility is looking to move its 34.5kV switchgear indoor into a new switchgear building which will be constructed as part of this bid.

Attachments

Contact

Email:
calderonep@naperville.il.us
Phone:
(630)548-2984
Title:
Utility Engineering Manager
Address:
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