Saeul Nuclear Power Plant Unit 3, which resumed commissioning, was manually shut down again after two days.

(Ulsan = Yonhap News) Reporter Kim Geun-ju = Unit 3 of the Saeul Nuclear Power Plant in Ulsan, Ulju, which was automatically shut down during the test run, was shut down again on the 6th, two days after restarting.

Korea Hydro & Nuclear Power's Saeul Nuclear Power Plant headquarters announced that it manually shut down Saeul Unit 3 (1.4 million kW class) reactor at 3:01 pm on this day.

Saeul Nuclear Power Headquarters explained that a leak was confirmed in the pipe that drains the steam condensate supplied to the turbine, and the reactor was manually shut down to stabilize and maintain the facility.

The Saeul Nuclear Power Headquarters determined that there was no radiation impact from this shutdown and that the power plant was in a stable condition.

Saeul Nuclear Power Headquarters is analyzing the cause of the leak.

Previously, Saeul Unit 3 automatically stopped during test operation on the 11th of last month.

As a result of the Nuclear Safety and Security Commission's investigation, it was confirmed that the incident occurred when the operator incorrectly entered the turbine control valve position limiter setting value during the process of restoring the reactor output after a trial run test in which power transmission was cut off at 80% of the reactor output at the time.

The Nuclear Safety and Security Commission concluded this investigation and approved restarting the test drive on the 4th, but this time it was stopped manually.

After receiving an operating permit from the Nuclear Safety and Security Commission in December last year, Saeul Unit 3 is undergoing trial run tests to gradually increase output ahead of commercial operation.