en.Wedoany.com Reported - Recently, the construction plan for the P320 (turbine regulation and protection control system) localization modification of Hongyanhe Unit 4 passed expert review. The first unit's P320 overall replacement and modification at Hongyanhe Nuclear Power Plant is about to officially enter the construction phase.

The P320 overall replacement and modification project aims to localize the turbine control and protection system, further enhancing the operational reliability of the equipment and the self-controllability of critical spare parts, ensuring the long-term stable operation of the unit. Previously, the factory acceptance test for the domestically produced P320 platform had passed expert review, and the equipment was ready for delivery.

This review meeting was held at the Hongyanhe Nuclear Power Base. The modification project team gave a systematic report covering project management, risk identification, on-site construction control, and specialized construction plans. The expert panel, drawing on similar modification experiences from Daya Bay Nuclear Power Plant and Ningde Nuclear Power Plant, conducted a comprehensive and detailed review and discussion of the Hongyanhe modification construction plan, and provided professional optimization suggestions. After review, the experts unanimously agreed that the preparation for the P320 overall replacement and modification of Hongyanhe Unit 4 is thorough, the risks are controllable, and the conditions are in place for implementation during the H408 overhaul.

Going forward, the modification project team will strictly implement the expert review opinions, continuously optimize the construction organization and risk response measures, and make solid preparations for the smooth implementation of the modification. After the modification is implemented, Unit 4 will become the first unit at the Hongyanhe Nuclear Power Base to undergo this localization modification, accumulating important experience for the subsequent modification of the remaining units.

This review was conducted by an expert panel composed of experts from Suzhou Nuclear Power Research Institute, Daya Bay Nuclear Power, CGN Digital Technology Guanglihe, Dongfang Electric Automatic Control Engineering Co., Ltd., and other organizations. Ma Shu, Chief Expert of the Instrumentation and Control Operation and Maintenance Specialty of China General Nuclear Power Group, served as the panel leader.

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