The ZW32-35 Outdoor Vacuum Circuit Breaker is an advanced high-voltage solutions switchgear device designed for outdoor three-phase AC 50Hz power systems with a rated voltage up to 35kV. It is widely used in substations, rural power distribution networks, and industrial and mining enterprises to manage the opening and closing of load current, overload current, and short-circuit current. This vacuum circuit breaker is specifically engineered to withstand harsh environments, delivering reliable protection and control with minimal maintenance.
With its compact size, lightweight construction, anti-condensation design, and high electrical performance, the ZW32-35 is ideal for outdoor installations where weather resistance, safety, and operational efficiency are essential. It meets the performance standards required for modern power distribution systems and is a dependable solution for frequent switching operations.
Key Features of ZW32-35 Vacuum Circuit Breaker
- High Breaking Capacity: Designed to interrupt high fault currents quickly and safely without arc or explosion.
- Weather-Resistant Design: Silicone rubber insulation and sealed housing ensure excellent outdoor performance in humid, polluted, or dusty conditions.
- Maintenance-Free Operation: The sealed vacuum interrupter and robust structure eliminate the need for regular service.
- Compact and Lightweight: Easy to transport, install, and maintain in remote or rural areas.
- Smart Grid Compatibility: Can be equipped with reclosers, remote control modules, and telemetry systems for automated power distribution management.
Applications
The ZW32-35 Vacuum Circuit Breaker is suitable for:
- Power distribution lines in rural and urban networks
- Pole-mounted switching stations
- Substations of industrial and mining enterprises
- Automatic protection and fault isolation in smart grids
- Areas requiring frequent switching operations and durable performance
Technical Parameters of ZW32-35 Vacuum Circuit Breaker
| Item | Units | Data |
|---|---|---|
| Rated Voltage | kV | 35 |
| Rated Frequency | Hz | 50 |
| Rated Current | A | 630 |
| Rated Short-Circuit Breaking Current | kA | 20 |
| Rated Peak Withstand Current | kA | 50 |
| Rated Short-Time Withstand Current | kA | 20 |
| Rated Short-Circuit Closing Current | kA | 50 |
| Mechanical Life | Times | 10,000 |
| Short-Circuit Breaking Current Operation Times | Times | 30 |
| Power Frequency Withstand Voltage (1min) – Wet / Dry | kV | 42 / 48 |
| Lightning Impulse Withstand Voltage (Peak) | kV | 75 / 85 |
| Power Frequency Voltage Resistance of Secondary Circuit (1min) | kV | 2 |
The ZW32-35 Outdoor Vacuum Circuit Breaker offers a reliable, efficient, and durable switching solution for medium-voltage outdoor power systems. It is built to meet the demands of modern electrical networks, providing long-term safety and operational stability in challenging environments. With advanced vacuum technology, robust insulation, and maintenance-free design, this vacuum circuit breaker is the perfect fit for smart grid applications, rural electrification, and industrial protection systems.