Description
Description of ZW32-12F Series Outdoor High-Voltage Intelligent Vacuum Circuit Breaker
The ZW32-12F Series Outdoor High-Voltage Intelligent Vacuum Circuit Breaker, also known as the Sectionalizer or “Watchdog” in the industry, is a specialized outdoor power distribution device designed for three-phase AC 50Hz power systems with a rated voltage of 12kV. It is engineered to reliably open and close load currents, overload currents, and short-circuit currents in power systems, serving as a core protection and control component for power distribution networks.
Unlike conventional circuit breakers, this model integrates intelligent functions and a compact structure, making it particularly suitable for power distribution systems in substations and industrial and mining enterprises, as well as scenarios requiring frequent operations in rural power grids. Its robust design ensures stable performance even in harsh climatic conditions and polluted environments, reducing operational and maintenance burdens.
Parameter of ZW32-12F Series Outdoor High-Voltage 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 (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 | Interphase, ground/short circuit lightning impulse withstand voltage (peak) | kV | 75/85 |
| 12 | Secondary circuit withstands power frequency voltage for 1 minute | kV | 2 |
Feature of ZW32-12F Series Outdoor High-Voltage Intelligent Vacuum Circuit Breaker
- Compact and Lightweight Design: With a small volume and light weight, it is easy to install and transport, saving space in outdoor power distribution installations and reducing construction costs.
- Anti-Condensation & Harsh Environment Adaptability: Equipped with anti-condensation technology, it can work stably in high-humidity environments. Its corrosion-resistant shell and sealed structure also enable it to adapt to polluted, high-temperature, and low-temperature outdoor conditions.
- Maintenance-Free Operation: Adopting mature vacuum arc-extinguishing technology and high-quality components, it achieves maintenance-free performance, greatly reducing later maintenance workload and costs for users.
- Reliable Protection Performance: It can accurately and quickly respond to load currents, overload currents, and short-circuit currents, effectively protecting power lines and electrical equipment, and minimizing economic losses caused by faults.
- Suitable for Frequent Operation: The optimized operating mechanism has strong durability and stable mechanical performance, which can withstand long-term frequent switching operations, perfectly matching the needs of rural power grids and industrial and mining enterprises.
- Intelligent Sectional Protection: As a professional sectionalizer (“Watchdog”), it can quickly isolate faulty sections, prevent fault expansion, and ensure the continuity and stability of the entire power grid operation.
