Successful Application of National Nuclear Self-Instrumentation and PLC in the Hydropower Industry
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On November 6, the National Power Investment Corporation developed the National Nuclear Self-Instrumentation and PLC system, which was completed and delivered for use at the Yunnan International Jiayan Hydropower Station, marking the first successful application of this system in the hydropower sector.
In response to the increasing failure rate of the old imported PLC and software script vulnerabilities at the Yunnan International Jiayan Hydropower Station, the National Power Investment Corporation implemented a renovation using the self-developed PLC system. This was done while ensuring functional equivalence and resource reuse, fully leveraging the operational and maintenance experience of the Central Yunnan Regional Company in the hydropower industry. The overall construction period of the project was shortened to 6 days, significantly improving renovation efficiency and effectively reducing renovation costs. Additionally, the system renovation optimized control logic and intelligent display, ensuring timely response to process alarms while avoiding data loss due to operational errors, further enhancing system reliability and ease of operation.
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