Description
Description of ZW32-12 Series Outdoor High-voltage Vacuum Circuit Breaker
The ZW32-12 Series Outdoor High-voltage Vacuum Circuit Breaker is a specialized outdoor power distribution device designed for three-phase AC 50Hz power systems, with a rated voltage of 12KV. Adopting advanced vacuum arc-extinguishing technology, this circuit breaker is engineered to reliably open and close load currents, overload currents, and short-circuit currents in power grids, serving as a core component for power system protection and control. Unlike ordinary circuit breakers, it features a robust structural design that can withstand harsh outdoor environmental conditions, ensuring stable operation in extreme temperatures, humidity, dust, and other adverse scenarios. Compliant with relevant national and industry standards, the ZW32-12 Series integrates high performance, durability, and operability, providing a safe and reliable solution for outdoor power distribution networks.

Parameter of ZW32-12 Series Outdoor High-voltage Vacuum Circuit Breaker
| order number | project | unit | parameter |
| 1 | rated voltage | kV | 12 |
| 2 | rated frequency | Hz | 50 |
| 3 | rated current | A | 630 |
| 4 | rated short-circuit breaking current | kA | 20 |
| 5 | rated peak current (peak) | kA | 50 |
| 6 | rated short-time current | kA | 20 |
| 7 | rated short-circuit closing current (peak) | kA | 50 |
| 8 | mechanical life | Next | 10000 |
| 9 | rated short-circuit breaking current, breaking times | Next | 30 |
| 10 | Power frequency withstand voltage (1 min): Same for wet and dry conditions, to ground/short circuit | kV | 42/48 |
| 11 | Lightning impulse withstand voltage (peak), to ground/short circuit | kV | 75/85 |
| 12 | Secondary circuit withstands power frequency voltage for 1 minute | kV | 2 |

Feature of ZW32-12 Series Outdoor High-voltage Vacuum Circuit Breaker
- Reliable Core Performance: Adopting advanced vacuum arc-extinguishing technology, it has the advantages of fast arc extinction, no arc pollution, and high breaking capacity. It can reliably handle various current faults, ensuring the safe and stable operation of the power grid and reducing the risk of power accidents.
- Strong Outdoor Adaptability: The product is designed for outdoor use, with a robust and durable structure. It has excellent resistance to high and low temperatures, humidity, ultraviolet radiation, dust and corrosion, and can operate stably in various harsh outdoor environments without being affected by the external environment.
- Wide Application Scope: It is highly adaptable, and can be widely used in power substations, industrial and mining enterprises, rural power grids, and other scenarios. It can be used as both a power protection device and a power grid sectional switch, meeting the diverse needs of different users.
- Support Intelligent Upgrade: It has good compatibility with dedicated controllers. After simple installation and debugging, it can be integrated into the distribution network automation system, realizing remote control, remote monitoring, fault alarm and automatic fault isolation. It reduces manual operation and maintenance costs and improves the intelligence level of the power grid.
- Easy Installation and Maintenance: The product adopts a compact structural design, which is small in size and light in weight, making it convenient for on-site installation and transportation. At the same time, the structure is simple and easy to disassemble, which reduces the difficulty of later maintenance and shortens the maintenance time.
- Compliant with Industry Standards: The product strictly complies with relevant national and industry standards, ensuring stable and reliable product quality, good compatibility with other power equipment, and providing users with safe and trustworthy power distribution solutions.
Application of ZW32-12 Series Outdoor High-voltage Vacuum Circuit Breaker
- Power Substations and Industrial and Mining Enterprise Distribution Systems: It is mainly used for protection and control in power substations and distribution systems of industrial and mining enterprises. It undertakes the important task of safeguarding key power equipment, preventing damage to transformers, cables and other equipment caused by overload, short circuit and other faults, and ensuring the continuity and stability of power supply in industrial production.
- Rural Power Grids with Frequent Operations: Due to its excellent mechanical performance and long service life, it is particularly suitable for rural power grid scenarios that require frequent switching operations. It can adapt to the characteristics of scattered rural power supply points and frequent load changes, reducing the frequency of equipment maintenance and improving the reliability of rural power supply.
- Power Grid Sectional Switch: It can be used as a sectional switch in power grids to divide the power grid into multiple sections. When a fault occurs in a certain section, it can quickly isolate the faulty section, avoid the expansion of the fault range, and ensure the normal power supply of other sections, improving the stability and reliability of the entire power grid.
- Distribution Network Automation System: After being equipped with a dedicated controller, it can be seamlessly integrated into the distribution network automation system. It realizes intelligent functions such as remote monitoring, remote control, and automatic fault handling, reducing manual operation and maintenance costs and improving the intelligence level and operation efficiency of the power grid.




