Vacuum circuit breaker is an electrical device that uses a vacuum medium to achieve efficient breaking and protection, and is mainly used in high-voltage power systems. The following is a collection of key information:
1. Core definition
Vacuum circuit breaker uses a high vacuum environment as an insulating and arc-extinguishing medium to achieve rapid breaking and closing of the circuit. Its core component is a vacuum arc-extinguishing chamber, which can extinguish the arc in a very short time to ensure reliable operation.
2. Main features
Excellent insulation and arc-extinguishing performance
The vacuum medium has high insulation strength, and the arc is quickly cooled and extinguished in a vacuum, and the breaking capacity far exceeds that of traditional air or oil-immersed circuit breakers.
Compact structure and convenient maintenance
Small size, light weight, and no need for frequent maintenance, suitable for high-frequency operation scenarios.
Wide range of applications
Mainly used in 10-35kV power systems, including distribution networks, industrial and mining enterprises, power plants and substations, and can cope with overload, short circuit and other faults.
3. Working principle
Normal state: High vacuum insulation is maintained between the contacts, and the current passes normally.
Fault state: The operating mechanism separates the contacts to generate an arc, and the vacuum environment quickly cools the arc to disconnect the circuit.
4. Typical application scenarios
Distribution network: such as central cabinets, double-layer cabinets, etc., used for load current and short-circuit current protection.
Industry and power generation: such as coal mines, power plants and other places that require frequent operations and high safety requirements.
5. Common models
Such as ZW-32, ZW-43 and other models, different models correspond to different voltage levels and functional requirements.
Shaanxi West Power Tongzhong Electrical Co., Ltd.
Our address
Nanpo Village, Chencang Avenue Jintai District Baoji City, Shaanxi Province, China.
Phone Number
WhatsApp:+86 18091767067
