Process flow of outdoor vacuum circuit breaker production line

Outdoor Electrical Circuit Breaker

The production line process for outdoor vacuum circuit breakers is a complex and precise procedure designed to ensure the quality, performance, and safety of the final product. Here is an overview of the main production process for outdoor vacuum circuit breakers:

  1. Raw Material Inspection: Initially, all raw materials entering the production line are subject to strict inspection to ensure they meet the quality requirements for manufacturing vacuum circuit breakers.
  2. Component Processing: Components are finely machined through methods such as mechanical processing, including CNC-controlled machining of contact heads, and processing of copper bars through rolling, extrusion, and cooling treatments.
  3. Assembly: Processed components are assembled according to design requirements. This includes main shaft assembly, mechanism assembly, casing and spring assembly, phase column pre-assembly, and chassis assembly.
  4. Characteristics Testing: After assembly, characteristic tests are conducted, which include checking the circuit breaker’s breaking current capacity, insulation strength, vacuum level, and contact resistance.
  5. Quality Control: Throughout the production process, each step is subject to quality control to ensure the product meets design and process requirements. Non-conforming components and products are eliminated.
  6. Performance Testing: Various performance tests are conducted on the vacuum circuit breaker to ensure its reliability and stability in actual use, such as mechanical characteristic testing and full-shielded partial discharge withstand voltage tests.
  7. Running-in Test: The product undergoes a running-in test through a circuit breaker running-in test system to eliminate initial defects of newly assembled products.
  8. Final Inspection: After all tests are completed, a final inspection is conducted to ensure the product fully complies with the factory standards.
  9. Packaging and Storage: Qualified products are packaged and stored, ready for shipment to customers or the installation site.
  10. Dispatch: Finally, the vacuum circuit breaker is transported to the designated location for installation and use.

The entire production process must strictly adhere to process specifications and quality standards to ensure that every vacuum circuit breaker leaving the factory can operate stably and safely in outdoor environments.

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