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Vacuum disjoncteur

"Vacuum Circuit Breaker" gets its name because its arc extinguishing medium and the insulation medium of the contact gap after arc extinguishing are both high vacuum; it has the advantages of small size, light weight, suitable for frequent operation, and no maintenance for arc extinguishing. Applications in the power grid are relatively widespread. High voltage vacuum circuit breaker is an indoor power distribution device in a 3 Quoi?10 kV, 50 Hz.Peut être utilisé dans les entreprises industrielles et minières, les centrales électriques, les sous - centrales électriques, et d 'autres équipements électriques de protection et de contrôle.Pour faciliter l 'entretien et l' utilisation fréquente, le disjoncteur peut être configuré dans l 'armoire centrale, l' armoire double et l 'armoire fixe pour commander et protéger le matériel électrique haute tension.

Vacuum disjoncteur

In 1893, Rittenhouse in the United States proposed a vacuum interrupter with a simple structure and obtained a design patent. In 1920, the Swedish Foga Company made the first vacuum switch. Research results published in 1926 and others also show the possibility of breaking the current in a vacuum. However, due to the small breaking capacity and the limitation of the development level of vacuum technology and vacuum materials, it has not been put into practical use. With the development of vacuum technology, in the 1950s, the United States only made the first batch of vacuum switches suitable for cutting off capacitor banks and other special requirements. The breaking current is still at the level of 4 thousand amps. Due to advances in vacuum material smelting technology and breakthroughs in the research of vacuum switch contact structures, in 1961, production of vacuum circuit breakers with a voltage of 15 kV and a breaking current of 12.5 kA began. In 1966, 15 kV, 26 kA, and 31.5 kA vacuum circuit breakers were trial-manufactured, so that the vacuum circuit breaker entered a high-voltage, large-capacity power system. In the mid-1980s, the breaking capacity of vacuum circuit breakers reached 100 kA. China began to develop vacuum switches in 1958. In 1960, Xi'an Jiaotong University and Xi'an Switch Rectifier Factory jointly developed the first batch of 6.7 kV vacuum switches with a breaking capacity of 600 A. Subsequently, they were made into 10 kV and a breaking capacity of 1.5. Qian'an three-phase vacuum switch. In 1969, Huaguang Electron Tube Factory and Xi'an High Voltage Apparatus Research Institute produced a 10 kV, 2 kA single-phase fast vacuum switch. Since the 1970s, China has been able to independently develop and produce vacuum switches of various specifications.

Vacuum disjoncteur

Le disjoncteur à vide est généralement divisé en plusieurs niveaux de tension.La basse tension est généralement utilisée dans des applications électriques anti - détonation.Comme la mine de charbon.

Courant nominal de 5000a, courant de rupture de plus de 50ka, jusqu 'à 35kV tension.

Avant les années 80, les disjoncteurs à vide étaient encore au stade initial de leur développement et continuaient de faire l'objet d'études techniques.Il est impossible d'établir des normes techniques.Ce n'est qu'en 1985 que les normes applicables aux produits ont été établies.


CONTACT

+86-577-62697170
Liu Shi Zhen, Leqing Ville, Wenzhou Ville, Province du Zhejiang

CIE COMPANY

Leqing aiso Electric Co., Ltd est située dans la ville de Wenzhou, Province du Zhejiang, Liushi ville.Liu Shi Zhen est la ville chinoise de haute tension électrique.