Classes continued in dim and darkened spaces as 17 buildings were left with no power briefly Thursday morning. Emergency power systems continued running.

A relay action at the power plant shutdown a section of the switchgear, causing the outage, according to an email sent out by Facilities Planning and Management Utility Services. 

All power was restored by 10:15 a.m., Jeff Witt, coordinator with Facilities and Planning, wrote in an email. 

A relay is a fuse, or something that protects the switchgear, and shuts down the switchgear when it detects something went wrong, Witt said. Witt said that in this case it was a false action and nothing was actually wrong. 

The outage left the following buildings with out power this morning: General Services, Lagomarcino, Meets Lab, Horsebarn, Ruminant Nutrition, Agronomy Greenhouse, Forker, East, Heady, Ross, Farmhouse, Bessey, Food Science, Hamilton, Landscape Architecture, East Parking Deck and Gerdin.