Nuclear inspectors are looking into what caused a reactor trip and power outage at a Kansas nuclear plant.

The Wolf Creek Nuclear Plant in Burlington shutdown earlier this month after a main generator electrical breaker failed. Officials at the nuclear power plant declared a Notification of Unusual Event as a result of the power loss. There were no radiological releases due to the event.

The Nuclear Regulatory Commission is sending an Augmented Inspection Team to Wolf Creek to review the incident.

“An AIT is used when the NRC wants to promptly dig deeply into the circumstances,” said NRC Region IV Administrator Elmo E. Collins. “We want to make sure that all of the circumstances that contributed to this event are well understood in order to prevent a recurrence.”

The team will put together a detailed chronology of the event, evaluate the adequacy of licensee actions in response to the incident and assess the impact of the prolonged loss of off-site power to non-safety related equipment. The team’s report will not contain inspection findings, but will identify areas for further inspection follow-up.

The NRC will hold a public exit meeting with Wolf Creek owners upon completion of the inspection to discuss its preliminary findings.