Description
Description of ZW32L-12 Series Outdoor High-Voltage Zero Sequence Intelligent Vacuum Circuit Breaker
The ZW32L-12 Series Outdoor High-Voltage Zero Sequence Intelligent Vacuum Circuit Breaker (hereinafter referred to as Zero Sequence Intelligent Circuit Breaker) is a professional outdoor power distribution device tailored for three-phase AC 50Hz power systems with a rated voltage of 12KV. It integrates advanced zero-sequence protection technology and intelligent control functions, serving as a core component for safe and efficient power distribution in various scenarios.
Designed to reliably open and close load currents, overload currents, and short-circuit currents in electrical systems, this breaker not only provides comprehensive protection and precise control for power distribution systems in substations and industrial and mining enterprises but also adapts perfectly to frequent operation scenarios in rural power grids. Its intelligent design supports easy integration with distribution network automation systems when equipped with a dedicated controller, laying a solid foundation for smart grid construction.
Adopting high-quality vacuum arc-extinguishing technology and zero-sequence current detection modules, the ZW32L-12 series ensures stable performance, accurate fault identification, and rapid response. It complies with relevant national and industrial technical standards, making it a reliable choice for outdoor high-voltage power distribution, with excellent adaptability to harsh outdoor environmental conditions such as high temperature, low temperature, humidity, and dust.
Parameter of ZW32L-12 Series Outdoor High-Voltage Zero Sequence Intelligent Vacuum Circuit Breaker
| 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 rating (peak) | kA | 50 |
| 6 | rated short-time current | kA | 20 |
| 7 | rated short-circuit closing current (peak) | kA | 50 |
| 8 | mechanical life | time | 10000 |
| 9 | rated short-circuit breaking current, breaking times | time | 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 ZW32L-12 Series Outdoor High-Voltage Zero Sequence Intelligent Vacuum Circuit Breaker
- Intelligent Zero Sequence Protection: Equipped with a high-precision zero-sequence current detection module, it can quickly identify and respond to zero-sequence faults (such as leakage faults), effectively preventing electrical accidents caused by unbalanced currents and improving the safety of the power distribution system.
- Reliable Vacuum Arc-extinguishing: Adopts mature vacuum arc-extinguishing technology, which has the advantages of fast breaking speed, small arc energy, low contact wear, and no pollution. It can reliably break various types of currents, ensuring long-term stable operation without frequent maintenance.
- Adaptable to Frequent Operation: Optimized operating mechanism design, with strong structural durability and stable mechanical performance, which can adapt to the frequent switching needs of rural power grids and industrial and mining enterprises, reducing the failure rate caused by frequent operation.
- Support Distribution Network Automation: Reserved with a controller interface, after installing a dedicated intelligent controller, it can realize remote monitoring, remote control, fault diagnosis, and automatic reclosing functions, perfectly matching the construction needs of smart distribution networks.
- Excellent Outdoor Adaptability: The shell is made of high-quality anti-corrosion materials, with excellent weather resistance, dustproof, waterproof, and anti-aging performance. It can work reliably in harsh outdoor environments such as high temperature, low temperature, heavy rain, and dust.
- Simple Installation and Maintenance: Compact structure, reasonable design, convenient on-site installation and debugging; the core components adopt maintenance-free design, which greatly reduces the later maintenance workload and maintenance costs, improving the operational efficiency of the power grid.
- Comprehensive Protection Functions: Integrates overload, short-circuit, and zero-sequence protection functions, with precise protection setting and rapid response, which can comprehensively protect power lines and electrical equipment from various faults, minimizing economic losses caused by faults.
- High Compatibility: Complies with relevant national and industrial standards, has good compatibility with various power distribution equipment and automation systems, and can be flexibly applied to different power distribution scenarios such as substations, rural power grids, and industrial and mining enterprises.
