South Texas Project Unit 2 Offline, Faces Major Generator Repair

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Researched by Industrial Information Resources (Sugar Land, Texas)--Unit 2 of the South Texas Project (STP) returned to service from a refueling outage on November 22, but tripped offline due to a generator malfunction during the early morning of November 28. Officials at STP have reported a leak in the generator stator coil.

While employees are still investigating the cause of the leak, the extent of the damage will remain unknown until the rotor is pulled and further inspections can be performed this week. Certain sources predict that the unit will be offline for about a month, but other onsite sources are predicting a downtime of three to four months to assess and repair all damage.

The South Texas Project is a nuclear power station located in Wadsworth, Texas. The station became operational in 1988 with a 1,280-megawatt (MW) Siemens steam turbine. The addition of the 1,280-MW Unit 2 in 1989 gave STP a total combined capacity of 2,560 MW.

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