The Pilgrim nuclear power plant in Plymouth, MA, is back online after repairs to the electrical system that runs the pumps that supply cooling water to the reactor core.
A spokeswoman for the Pilgrim Nuclear Power Station’s owners said the plant reconnected to the regional power grid at 1:47 p.m. Monday. The system manually shut down Thursday morning.
The company said plant technicians replaced a breaker and corrected a ground fault on a solenoid associated with the water cooling circuitry. They also performed other maintenance that can only happen when the plant is not operating.
The Nuclear Regulatory Commission (NRC) and plant operators said last week there was no threat to public safety. Pilgrim owner, Entergy, said backup pumps automatically activated and plant systems performed as designed.