Officials of Entergy New Orleans say the device, called a relay, had been installed to protect the stadium from a cable failure between the company's incoming power line and lines that run into the stadium.
Company officials said the device performed without problem during January's Sugar Bowl and other earlier events.
They said the device has been removed and replacement equipment will be installed.
The power failure cut lights to about half of the stadium for 34 minutes, halting play between the Baltimore ravens and San Francisco 49ers.
More Sports Headlines
Pro lacrosse scoring leader Tavares retiring after 24 years 9:22 a.m. Sounders deal with significant international issues Morrison's pinch homer lifts Mariners to 7-5 win over Astros Ex-Bills' RB Jackson meets, takes physical with Seahawks AquaSox fall 7-6 to Spokane in 10 innings Steady in face of Kyrgios' 'antics,' Murray wins at U.S. Open M's notebook: Quartet added from Triple-A Hasselbeck lobbying to start Colts' preseason finale
Our new comment system is not supported in IE 7. Please upgrade your browser here.