Core Technology Breakthrough
Intelligent Control and Modular Design
Shenzhen Meihua has developed an intelligent vacuum circuit breaker equipped with an integrated control panel and a remote monitoring system. Through arm optimization and wire tensioning technology, it addresses the issue of multiple wire entanglement and wear, enhancing the equipment's stability.
CRRC Corporation's adoption of robotic automation welding technology in the production of CR450 EMUs provides a high-precision manufacturing model for the modular design of handcart-type equipment modules.
High-voltage vacuum arc quenching technology
Pingao Group achieves breakthrough in 252kV single-break vacuum circuit breaker technology, utilizing new coil-type contacts and modified contact materials, realizing the simultaneous enhancement of long true air gap insulation and interruption capabilities, contributing to the green transformation of the power grid.
Innovative Safety Inspection Tools
The "Plum Blossom Contact Assembly Kit" developed by Guoguang Xiangtan Electric Power Co., Ltd. has reduced maintenance time from 40 minutes to 7 minutes, lowered the risk of spring damage, and has been promoted in multiple provinces across the country.
Section II: Typical Application Scenarios and Achievements
Grid Operation and Maintenance Automation
China Petroleum Changqing Oilfield introduces intelligent handcart robots, achieving fully automatic insertion, extraction, and transfer of 35kV/10kV switchgear handcars, improving single operation efficiency by 80%, and significantly reducing personnel safety risks.
Guangwang Guzhen County Power Supply Company has achieved precise fault location and rapid isolation through the replacement of intelligent pole-mounted vacuum circuit breakers, installing a total of 73 units by the end of 2024. This has reduced summer power failure repair times by 50%.
Industrial Scene Efficiency Enhancement
The Qiu Lei Innovation Studio has improved the testing method for vacuum circuit breakers, with real-time sensor data transmission boosting measurement efficiency by 90%, now covering 95% of railway power supply system circuit breakers.
Industry Impact and Future Trends
Environmental Benefits: The operation of the 252kV vacuum circuit breaker online marks China's global leadership in high-voltage vacuum switch technology.
Industry Chain Upgrade: CRRC Group's intelligent processing equipment for wind turbine blades and Pinggao Group's vacuum arc extinction technology are advancing the power equipment manufacturing towards high-end and green development.
Operations Revolution: The widespread adoption of intelligent robots, remote monitoring, and other technologies is propelling the transformation of power grid operations from labor-intensive to unmanned and digitalized.
Data Highlights:
Handcart equipment maintenance efficiency increased by 82%.
Smart Switch Fault Isolation Speed Increased to Second-Level
High-voltage vacuum arc extinguishing technology reduces carbon emissions by over 90%.
