Hanul Nuclear Power Plant Unit 6, Coolant Pump Stops Causing 'Automatic Shutdown'... "No Radiation Leak"

On the 4th, Hanul Nuclear Power Plant Unit 2 Manual Shutdown 'Emergency Situation'

[Image source=Yonhap News]

[Asia Economy Yeongnam Reporting Headquarters Reporter Dongwook Park] At around 12:05 PM on the 19th, Hanul Nuclear Power Plant Unit 6 (Pressurized Water Reactor type, 1 million kW class) located in Buk-myeon, Uljin-gun, Gyeongbuk, automatically shut down during PCS card replacement.

Hanul Nuclear Power Headquarters of Korea Hydro & Nuclear Power Co., Ltd. (Head Lee Jong-ho) explained, "During the PCS card replacement process, a false signal caused the reactor coolant pump to stop, resulting in the automatic shutdown of the reactor."

The PCS (Plant Control System) card is a card that transmits signals to the power plant control system and functions to send stop signals to the reactor coolant pump, etc., in case of abnormal plant conditions or false signals.

Hanul Nuclear Power Plant is currently analyzing the cause of the incident. According to Hanul Nuclear Power Plant, there was no external radiation leakage due to this shutdown, and the plant remains in a safe condition.

Earlier, on the 4th at around 4:36 AM, Hanul Nuclear Power Plant Unit 2 (Pressurized Water Reactor type, 950,000 kW class) was manually shut down due to exceeding the secondary side water quality standards of the steam generator. This plant had been operating normally since the Nuclear Safety and Security Commission allowed its restart after a safety inspection on February 4.

This content was produced with the assistance of AI translation services.