Smart Medium Voltage Complete Switchgear
ZW32-12/630 Outdoor High-Voltage AC Vacuum Circuit Breaker
The ZW32-12/630 outdoor high-voltage AC vacuum circuit breaker is suitable for outdoor three-phase AC 12kV power systems and can be used as a control and protection unit for boundary, sectional, and connecting lines, capable of switching normal load current, overload current, and interrupting rated short-circuit current. The product is widely used in urban and rural power grids (especially in frequently operated locations). Equipped with intelligent remote terminals, it can meet the needs of distribution automation applications. This product features excellent electrical performance and requires little to no maintenance over the long term.
Suitable for urban and rural power grids.
Product Highlights
Measures and displays key parameters such as voltage, current, power, and power factor.
Based on the common gas chamber, a separate gas chamber design concept has been introduced, with both top and side expansion options, making expansion more flexible and installation more convenient.
Uses vacuum arc extinguishing, silicone rubber and epoxy resin composite insulation, UV resistant, anti-aging, and excellent electrical performance.
Compact structure, simple appearance, corrosion-resistant metal casing, with an IP44 protection rating, good rainproof performance, and a service life of more than twenty years.
No pollution or harm to the environment and human body.
The entire cabinet adopts a modular assembly structure with modular hole installation, strong component universality, good applicability, high standardization, and flexible assembly.
Technical parameters
| Rated Parameters | Unit | Parameter Value | ||
| Rated Voltage | kV | 12 | ||
| Rated Insulation Level | Rated Short-Time Power-Frequency Withstand Voltage (1min) | Phase-to-Phase, Phase-to-Ground | kV | 42 (Dry Test)/34 (Wet Test) |
| Fracture | 48 | |||
| Rated Lightning Impulse Withstand Voltage (Peak Value) | Phase-to-Phase, Phase-to-Ground | 75 | ||
| Fracture | 85 | |||
| 1min Power-Frequency Withstand Voltage of Auxiliary Circuit | 2 | |||
| Rated Frequency | Hz | 50 | ||
| Rated Current | A | 630 | ||
| Rated Short-Time Withstand Current | kA | 20 | ||
| Rated Peak Withstand Current | kA | 50 | ||
| Rated Short-Circuit Duration | S | 4 | ||
| Rated Short-Circuit Breaking Current | kA | 20 | ||
| Rated Short-Circuit Making Current (Peak Value) | kA | 50 | ||
| Out-of-Phase Ground Fault Breaking Current | kA | 17.4 | ||
| Out-of-Step Making and Breaking Current | kA | 5 | ||
| Rated Line Charging Making and Breaking Current | A | 10 | ||
| Rated Cable Charging Making and Breaking Current | A | 25 | ||
| Rated Short-Circuit Current Breaking Times | times | 30 | ||
| Closing and Opening Operating Voltage | V | 24/48/110/220 | ||
| Rated Operating Sequence | - | 0-0.3s-CO-180s-CO | ||
| Mechanical Life | times | 10000 | ||
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