Year1
- 额定电压：
- 690V
- 额定电流：
- 630-6300
- 短路分断能力：
- 80-120KA
AC rated current short-circuit breaking capacity effective value rated working voltage and below is not suitable for system use category. It has pole and pole drawer type and fixed type. It can be installed with a variety of intelligent controllers that provide different functions and isolation functions. The symbol is for execution. This circuit breaker has obtained the national compulsory product certification mark.
Circuit breakers are divided into fixed type and draw-out type. The fixed circuit breaker body is installed into a special drawer base to become a draw-out type circuit breaker. The circuit breaker body is composed of contact system, arc extinguishing system, operating mechanism, current transformer, intelligent controller and auxiliary switch, secondary connector, undervoltage shunt release and other components. The drawer base consists of left and right side plate bases with guide rails and cross beams. etc. composition.
Contact system
A first-block contact system is adopted. At different parts of the same contact, the contact unit has the function of both the main contact and the arc contact. It adopts a new type of arc-resistant contact. The contact material is used so that the contact will not overheat and cause excessive temperature rise after breaking the short-circuit current. The contact system adopts multiple parallel connections to reduce the electric repulsion and improve the electric stability of the contact system
Each pole of the arc extinguishing chamber Each circuit breaker is equipped with an arc extinguishing chamber, which is used to separate and insulate the electrodes from each other and from other parts of the circuit breaker and the operator. The mechanical strength of the chamber wall prevents it from bursting when breaking a large short-circuit current. The operating mechanism and manual electric transmission mechanism are located on the front of the circuit breaker. The operating mechanism adopts a five-link free tripping mechanism and is designed in an energy storage form. During use, the mechanism is always in the pre-energy storage position. As soon as the circuit breaker receives the closing command, the circuit breaker can be closed instantly. The release of pre-stored energy can be completed by manual energy release button or closing electromagnet. The electric transmission mechanism is self-contained, and the energy storage shaft and the main shaft are movablely connected through a concave and convex wedge, making assembly and disassembly easy.
With the development of science and technology, frame circuit breakers have become one of the indispensable products in the industrial era. Jiangxi Huajian adheres to the honest and pragmatic professional spirit and provides users with the best products and the most considerate services.
Jiangxi Huajian Electric Power Industry Co., Ltd. is a joint-stock company integrating R&D, production and sales. It has strong technical force, various excellent equipment for manufacturing and testing, rich experience in designing and manufacturing power products, a strict standardized quality system, and a complete after-sales service team, and its products are distributed all over the country. Huajian Electric Power has experienced many years of ups and downs. Survival by quality and development by integrity are our philosophy.
Main products: Indoor high-voltage vacuum circuit breaker, outdoor high-voltage vacuum circuit breaker, sulfur hexafluoride circuit breaker, isolating switch, dual power transfer switch, frame circuit breaker, control protection switch, arrester, transformer fuse, load switch, capacitor soft start, etc. , we can also provide OEM processing. Customers are welcome to visit our company for on-site inspection.
For details, please contact Zhong Xiaoling via fax
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