High-voltage switch intelligent and closely related to the development of electrical components

During the "12th Five-Year Plan" period, China's high-voltage switch industry should take the opportunity of building a strong smart grid and rely on UHV AC and DC power transmission projects to enhance its independent innovation capabilities, greatly increase the level of intelligent switchgear, and promote environmental protection and energy conservation. Emission-reducing equipment; UHV transmission technology and advanced electrical equipment and integration technology should be the key areas of development. Intensive research should be conducted on 1000kV UHV transmission and key equipment and core technologies to accelerate the complete localization of AC and DC high-voltage equipment; and Advanced research on advanced electrical equipment and integration technology, striving to achieve key breakthroughs in key technologies for superconducting power equipment; striving to promote optimization and upgrading of industrial structure, further enhancing the overall technical level and international competitiveness of the industry, and striving to realize high-voltage switching industry from large to strong The transformation.

At present, the replacement of electrical products is very frequent, and often in a short time, many old-style product series can be eliminated. While the electrical components are being intelligentized, high-voltage switches are also continuing to advance in the direction of intelligence. The high-voltage switchgear products that are currently in the leading position in the world have trip circuit disconnection monitoring, action time detection, contact part detection, spring energy storage time detection and other functions. These integrated functions constitute an intelligent high-voltage switch.

During the “Twelfth Five-Year Plan” period, large-scale key enterprises in the high-voltage switch industry have further conducted in-depth technical research on the core technology and key components of UHV switchgear, and achieved the goal of UHV equipment based on domestic and independent R&D and full realization of localization. Combining the construction of smart grids, digital substations, and distribution automation, we will vigorously promote the intelligentization of switchgear. Since the intelligent technology of switchgear is still a weak point in the industry, it is recommended that it be developed first and then easily. For example: firstly develop intelligent circuit breakers for distribution networks, and then develop switchgear for intelligent distribution networks, smart grid GIS, GCB and others. Smart components, etc., focus on the overall integration of switch primary equipment and secondary control and the development of interface technologies.