Stories from Thursday, June 2, 2011

Just before 5:00am Wednesday morning, electric power to Trumann, Harrisburg and Marked Tree was interrupted to all three substations. The cause of the problem was a snake that came in contact with the high voltage lightning arrestor and bushing on top of the Trumann substation transformer creating a fault. Since the fault occurred on the high voltage side of the transformer, the transmission system protection devices sensed the fault and opened sectionalized switches in the area disrupting the power supply to the Harrisburg and Marked Tree substation. Power was restored to Harrisburg and Marked Tree about an hour and a half later. Most of Trumann received power by late afternoon.