Technical Key Points in the Production Process of RMUs (Ring Main Units)

During the production process of RMUs (Ring Main Units), common technical challenges and their corresponding solutions are as follows:

1. Environmental Control:
   • Challenge: Maintaining a clean and dry production environment to prevent moisture and dust.
   • Solution: Employ advanced environmental control technologies to ensure the temperature and humidity in the production area are within the appropriate range, reducing the impact on equipment insulation performance and mechanical parts.
2. Intelligence and Automation:
   • Challenge: Achieving intelligent and automated production processes to improve efficiency and reduce human error.
   • Solution: Utilize Internet of Things (IoT) technology, combining online and offline services, to achieve deep integration of intelligent control and data services. Collect, analyze, and process data through intelligent gateways and store it on cloud platforms, using edge algorithms and big data analysis to determine the operation and “health” status of equipment.
3. Material Selection and Processing:
   • Challenge: Choosing appropriate materials and processing them accurately to ensure the performance and reliability of the RMU.
   • Solution: Use solid insulating materials instead of SF6 gas to reduce environmental impact. Employ advanced material processing techniques such as ion implantation and molecular beam epitaxy for more precise material doping.
4. Assembly Precision:
   • Challenge: Ensuring the precision of the RMU assembly to avoid performance issues due to improper assembly.
   • Solution: Use high-precision assembly equipment and tools, implement strict quality control measures, and ensure the assembly precision and consistency of each component.
5. Safety and Protection:
   • Challenge: Ensuring the safety of operators during production and protecting equipment from external environmental impacts.
   • Solution: Design and use equipment with high protection levels, such as gas chambers welded by stainless steel laser, ensuring complete sealing to prevent gas leakage and sealing gasket issues.
6. Testing and Verification:
   • Challenge: Conducting comprehensive testing and verification of the RMU after production to ensure it meets standards.
   • Solution: Perform visual inspections, main circuit resistance measurements, mechanical operation and mechanical characteristic measurement tests, insulation resistance tests, main circuit 1-minute power frequency voltage tests, and protective device tests to ensure the RMU’s performance meets requirements before use.
7. Environmental Protection and Sustainability:
   • Challenge: Reducing the environmental impact during production and achieving sustainable development.
   • Solution: Use environmentally friendly materials and processes, such as solid insulation technology without SF6 gas, ensuring the product has eco-friendly characteristics throughout its lifecycle, and achieve recyclability of materials in product design, production, use, and recycling.
8. Maintenance and Fault Handling:
   • Challenge: Effectively maintaining and handling faults during the RMU’s operation to ensure long-term stable operation.
   • Solution: Use intelligent sensing technology to monitor equipment status in real-time, identify and address potential issues promptly. Reduce inspection costs and improve maintenance efficiency through mobile operation and maintenance systems.

By implementing these solutions, technical challenges in the RMU production process can be effectively addressed, ensuring the high quality and reliability of ring main units.