Ir al contenido 
In the global power distribution and transmission system, an outdoor vacuum circuit breaker (also known as a vacuum outdoor circuit breaker, high voltage vacuum circuit breaker) is the core electrical equipment to ensure the safe, stable, and efficient operation of the power grid. As a professional vacuum circuit breaker manufacturer with advanced research and production capabilities, Chuanli has been deeply engaged in the field of high and low voltage electrical equipment, and the high-performance outdoor vacuum circuit breaker developed by it conforms to international standards such as IEC, and is widely used in overhead distribution lines, pole-mounted distribution systems, substations, industrial parks, and rural power grids.
The use of vacuum circuit breakers is closely related to its installation location. Different application scenarios give it completely different core functions, from basic circuit on-off control, short-circuit fault protection, to intelligent monitoring and predictive maintenance in modern smart grids; the functional dimension is constantly extended.
Vacuum circuit breaker is an electrical switch device that uses vacuum as the arc extinguishing medium. It uses the high insulation performance of the vacuum environment to quickly extinguish the arc generated during the circuit breaking process, thus realizing the control of the on-off of the power circuit. The vacuum interrupter switch is the core component of the vacuum circuit breaker, which determines the opening and closing ability and service life of the whole equipment. The outdoor vacuum circuit breaker de Chuanli adopts a high-precision vacuum interrupter, covers a voltage range from 10kV to 220kV, and is equipped with silicon-coated insulators that can withstand 70kV impact voltage, suitable for harsh outdoor working environments such as high temperature, high humidity, and dust.
As a leading manufacturer of vacuum circuit breakers in China, the outdoor vacuum circuit breaker of Chuanli integrates modular design, intelligent monitoring, and high reliability into one, and its core performance fully meets the requirements of modern power grids. The key advantages are as shown in the table below:
| Core Performance | Chuanli Producto | Technical Parameters Application Value |
| Breakthrough Capacity | 25kA short-circuit current rating, fast breaking (<50ms) | Quickly interrupts fault current, preventing the spread of power grid faults. |
| Insulation Performance | Silicon-coated bushing, 70kV impulse withstand voltage, optional IP65 protection rating. | Stable operation in harsh outdoor environments, preventing insulation breakdown. |
| Intelligent Monitoring | Intelligent Monitoring: Integrated IoT sensors (temperature accuracy ±0.5℃), compatible with SCADA systems | Real-time equipment status acquisition enables predictive maintenance. |
| Mechanical Reliability | The disconnecting switch supports 100,000 mechanical operations, and its components are modular | Maintenance downtime is reduced by 50%, extending equipment lifespan. |
| Compliant with standards | IEC 62271, IEC 61439-2, and GB/T standards | Seamless interchangeability with international switchgear |
As the core component of the vacuum circuit breaker switch cabinet, Chuanli outdoor vacuum circuit breaker shows different core functions in different installation positions of the power grid, and realizes customized adaptability according to the characteristics of each distribution link. The following is a detailed analysis of its role in typical installation locations:
The overhead distribution line is the main body of the medium-voltage power grid in urban and rural areas, with the characteristics of long distance, wide coverage, and being easily affected by the natural environment. The high-voltage vacuum circuit breaker installed at this location is mainly used in conjunction with overhead line protection devices, and its core function is:
The overhead distribution system is an important link connecting the medium-voltage power grid and the low-voltage user side, which is often used in urban communities, rural villages, and other densely populated areas. The outdoor vacuum circuit breaker installed on the distribution pole has the characteristics of compact structure and convenient installation, and its core function is:
The industrial distribution system has the characteristics of large load, high reliability of power supply, and complex load types (such as motors, heavy machinery, etc.). The core function of the outdoor vacuum circuit breaker installed in industrial parks, factories, and other industrial distribution systems is as follows:
The rural power grid has the characteristics of wide distribution, scattered users, complex terrain, and relatively backward original equipment. As a key piece of equipment for the transformation of the rural power network, the outdoor vacuum circuit breaker de Chuanli has the following core functions in this position:
The intelligent distribution system is the development direction of the modern power grid, with functions such as real-time monitoring, remote control, and predictive maintenance. The core sensing and control node of the intelligent distribution system is the outdoor vacuum circuit breaker of Chuanli, which has the following core functions:
The outdoor switchgear assembly is an integrated device of various switch devices, integrating components such as circuit breakers, isolation switches, and transformers, and is widely used in urban and rural power distribution nodes. As the core of the vacuum circuit breaker cabinet in the outdoor switchgear assembly, the outdoor vacuum circuit breaker has the following core functions:
The rural area in Central China has a large area and scattered villages, and the original agricultural network uses traditional oil-immersed circuit breakers. Fuses are used for protection because the equipment has poor adaptability to the environment, frequent failures, and low breaking efficiency. The power grid has frequent power outages, large power outage areas, and long recovery times, seriously affecting the daily life of farmers and the development of rural characteristic industries (aquaculture, planting, etc.). In 2024, the local power supply department launched the rural network renovation project, selected Chuanli Electric as the core equipment supplier, and adopted multiple Chuanli outdoor vacuum circuit breakers and supporting switch cabinets.
According to the characteristics of the local agricultural network, Chuanli provides targeted distribution solutions:
The ZW series high-voltage vacuum circuit breaker of Chuanli is installed on the overhead distribution lines and distribution poles of the rural power network, so as to realize the segment control and fault protection of the power network.
Coupled with the wireless microcomputer protection device and the Internet of Things sensor, the basic intelligent monitoring system of the agricultural network can be built to realize the real-time monitoring of the operating state of the circuit breaker.
In conjunction with the replacement of the original old transformer by the compact substation of Chuanli, a miniaturized and integrated distribution unit is formed.
During the construction process, the technical team of Chuanli provided on-site installation guidance and operation training for local operation and maintenance personnel, covering the operation method of the outdoor vacuum circuit breaker and the maintenance points of the vacuum circuit breaker.
After the completion of the rural network transformation project, the application effect of the outdoor vacuum circuit breaker de Chuanli is remarkable:
The reliability of rural network power supply has been improved by more than 90%, the frequency of monthly power outages has been reduced from more than 10 times to less than 1 time, and the recovery time of power outages has been shortened from several hours to several minutes.
The intelligent monitoring system realizes the real-time grasp of the power grid operation state, and the predictive maintenance function reduces the failure rate of power grid equipment by 70%.
The compact design of the equipment saves 30% of the installation space, and the modular accessories reduce the daily maintenance cost of the power grid by 50%.
The matching of photovoltaic transformer cabinets provides conditions for rural photovoltaic power grid connection, and more than 20 rural photovoltaic projects have been connected to the grid successively, promoting the green development of local rural areas.
This case fully verifies the important role of the Chuanli outdoor vacuum circuit breaker in improving the stability and intelligence level of the rural power grid, and also reflects the strong adaptability and practical value of Chuanli products in the transformation of the rural power grid.
With the continuous development of the power industry towards intelligent, green, and highly reliable, the use of vacuum circuit breakers will become more and more extensive, and the functional requirements will become more and more diversified. Chuanli Electric will continue to focus on R&D innovation, optimize the performance and function of disyuntores de vacío para exteriores, develop more products suitable for different installation positions and application scenarios, and provide more reliable technical support and equipment support for the construction of the modern power grid. Whether it is the upgrading of urban power grids, the transformation of rural power grids, or the optimization of industrial distribution, the outdoor vacuum circuit breaker de Chuanli has always been a reliable choice for the power industry.
Q1: What is the voltage coverage range of the Chuanli outdoor vacuum circuit breaker?
A1: The voltage range is 10kV-200kV, and different series can match various voltage levels of power grids, and can be used in various installation scenarios.
Q2: What are the key points for the maintenance of vacuum circuit breakers in Chuanli outdoor products?
A2: Key points: 1. Regularly clean the appearance and check for corrosion damage;2. Test the mechanical closing and opening performance;3. Detect electrical insulation and local discharge;4. Calibrate the intelligent sensor;5. Replace the vacuum interrupter tube and other wearable parts in a timely manner.
Q3. How to use the outdoor vacuum circuit breaker with the vacuum circuit breaker switch cabinet?
A3: It conforms to the IEC 62272 standard, modular design, can be seamlessly exchanged with various switch cabinets of Chuanli, and can be flexibly matched with components to form a complete distribution protection system.
Q4. How long is the delivery time for the outdoor vacuum circuit breaker from Chuani?
A4: Standard stock samples will be delivered within 7-15 days; After the custom product is approved by DFM, the delivery time is 20-30 days.
Q5. Why choose Chuanli as the manufacturer of vacuum circuit breakers for outdoor power grid equipment?
A5: The core reasons are as follows: 1. Advanced product performance and compliance with national and international standards;2. Scene adaptability is strong, and customization is supported;3. Quality control is perfect, after-sales service is professional, with rich experience in power grid projects, and can provide overall solutions.
