| Customization: | Available |
|---|---|
| Transport Package: | Fumigation Wooden Box |
| Trademark: | YQALT |
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ZW8-12 Outdoor AC high Voltage Vacuum Circuit Breaker
Product Overview:
The ZW8-12 outdoor AC high voltage vacuum circuit breaker is designed to operate within three-phase power systems with voltages of 12 kV and below, and a frequency of 50Hz. It is primarily used in agricultural and urban power networks for breaking and closing load currents, overload currents, and short-circuit currents. Additionally, it can be utilized in similar environments, serving as a disconnection switch within 12 kV grade power grids in urban settings.
Structural and Operational Features:
This vacuum circuit breaker employs a vacuum interrupter with air insulation, alongside an electric spring operating mechanism. These features provide the breaker with a strong arc extinguishing capability, enabling it to perform multiple short-circuit breaking operations. The design ensures there is no risk of fire or explosion, making the breaker highly safe and reliable. The product's overall structure includes a three-phase common box type, with the casing designed for entering and exiting lines. Inside the box, dry air is maintained, while the electric spring operating mechanism is positioned on the side for reliable operation under harsh conditions.
Vacuum Interrupter Details:
The vacuum interrupter is equipped with a ceramic shell, a cup-shaped longitudinal magnetic field contact structure, and copper-chromium contact material, delivering excellent capabilities for breaking and closing short-circuit currents.
Design and Durability:
Compact in size, lightweight, and aesthetically designed, the ZW8-12 circuit breaker is engineered to withstand challenging weather conditions and dirty environments. The vacuum interrupter and insulating support sleeve are compactly designed, and the outlet conductive rod is externally coated with silicone rubber, further enhancing its resilience in demanding environments.
| Technical Specification | |
| Rated voltage | 12kV |
| Rated current | 630A |
| Power frequency withstand voltage | 42kV/48kV |
| Lightning impulse withstand voltage (peak) | 75kV/85kV |
| Rated short-circuit breaking current (effective value) | 20kA |
| Rated short circuit closing current (peak) | 50kA |
| Rated operation sequence | 0-0.3s-C0-180s-C0 |
| Rated short circuit current breaking times | ≥30 Times |
| Mechanical life | 10000 Times |
| Rated operating voltage (close/close coil) | DC220V AC220V |
| Dynamic and static contacts allow wear thickness | 3mm |
| Isolation fracture break distance | >200mm |
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