Classes were interrupted at some Ball State University buildings Tuesday morning after a transformer at the Tillotson St. substation was damaged.
Jim Lowe, director of engineering and operations, said the cause of the shortage of power that came from the transformer is unknown.
As a result, a series of power shortages affected the central part of campus including Bracken Library, the Arts and Journalism building, Whitinger Business building and the Architecture building. Some classes were canceled and the Atrium food court was closed for about an hour.
Lowe said the transformer, which transmits about 12,000 voltages for buildings, suffered a millisecond power outage.
Senior public relations major Curt Holloway said the shortage interrupted his class.
"It was funny seeing the teacher trying to turn the computers back on and how they kept shutting off," he said. "It made me realize how much teachers rely on technology."
Holloway said the class was learning how to use a sound editing software and despite the power outage his session was not canceled.
Instructor of communications Terry Heifetz was giving a lecture when the power went off. He said the constant outage caused him to change the route of the class.
"It was frustrating trying to reboot the computers but we had fun too," he said. "It made me think we must have more than a Powerpoint and have a discussion."