In the 21st century, vacuum technology will be widely used in the revolutionary upgrade of power equipment. Recently, Shanghai Huaming has successfully developed the VCM vacuum on-load tap-changer on the basis of successively launching various vacuum on-load tap-changers. With this technical route, the situation that China's transformer on-load tap-changers are fully vacuumed will be just around the corner, and the safety level of the power grid will be further substantially improved.
In recent years, the fierce market competition of transformer on-load tap-changers has greatly promoted the development of vacuum technology of tap-changers. Leading enterprises at home and abroad have successively launched vacuum on-load tap-changers. Under the leadership of its founder, Mr. Xiao Riming, Shanghai Huaming Power Equipment Manufacturing Co., Ltd. has worked hard and innovated continuously, and has successively launched a variety of vacuum on-load tap-changers. The VCM type vacuum on-load tap-changer was designed by many domestic power system users after careful consideration for more than two years. This new product technology has passed more than 1.5 million mechanical tests and more than 600,000 live switching tests.
The vacuum switching core of the VCM vacuum on-load tap-changer has unique advantages in terms of on-site transformation. The user can transform the copper-tungsten contact breaking method into a vacuum tube breaking method without replacing the complete tap changer, and realize the vacuum switching technology upgrade of the combined tap switch.
The wide application of this new technology and new products will greatly save the maintenance cost of the on-load tap-changer. According to estimates, the current maintenance cost is only 27.6% of the previous one, and it can also extend the electrical life of the contacts and the use of switching cores. life. At the same time, the core of the vacuum transfer switch and the original core have the same size and installation size, and it is very easy to replace on site. In addition, the vacuum switch extends the maintenance cycle and the maintenance amount is greatly reduced.
The successful R & D of the VCM vacuum tap changer provides a unique technology development route that conforms to China ’s national conditions. China ’s power grid can rely on this technology route, and it is expected to achieve the domestic transformer on-load tap changer on a “last-come-first-served†basis. Fully vacuumed.
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