12KV Vacuum Circuit Breaker Product Overview:
Procurement teams specify the premium 12KV Vacuum Circuit Breaker to achieve seamless primary and secondary fusion across modern utility networks. The ZW32-12TS architecture adopts a highly effective separated column structure, completely isolating the three-phase primary circuit to prevent single-phase faults from escalating into three-phase short circuits.
- An advanced unified parameter set accommodates both phase sequence and zero sequence voltage perfectly.
- Casting all critical indicators and the power intake sensor into a single solid pole column saves tremendous installation space.
- Rapidly identifies and determines line faults when connected directly with primary and secondary feeder terminals.
- Extensive B2B scalability backed by expert EPC design teams ready to supply massive custom material lots.
Key Features of the 12KV Vacuum Circuit Breaker:
Upgrading your overhead lines with our durable 12KV Vacuum Circuit Breaker drastically minimizes maintenance costs while maximizing grid safety. Utility contractors secure immediate operational advantages when deploying this advanced vacuum circuit breaker vcb for rural or municipal infrastructure.
- A miniaturized ceramic shell interrupter with copper-chromium contacts eliminates combustion and explosion risks entirely.
- Silicone rubber and imported outdoor epoxy resin insulate the internal cylinder, preventing condensation and delivering 20 years of maintenance-free performance.
- The fully sealed stainless steel 304 housing provides exceptional corrosion resistance without requiring transformer oil or SF6 gas.
- Electric operating mechanisms allow manual or electric energy storage, local interlocking, and rapid reclosing capabilities.
12KV Vacuum Circuit Breaker Applications & Environment:
Built to operate dependably under harsh weather conditions, the 12KV Vacuum Circuit Breaker is an indispensable safety mechanism for outdoor utility networks. Field crews consistently utilize this outdoor vcb breaker to execute safe and automated power distribution across vast topographies:
- Safeguarding fully insulated open wire networks by acting as a reliable outdoor vacuum circuit breaker in extreme temperatures (-40°C to +70°C).
- Operating flawlessly at high altitudes (up to 3000 meters) and surviving intense wind pressures up to 700Pa.
- Enduring level IV air pollution and earthquake intensities up to 8 degrees without structural deformation.
- Serving as a versatile 12kv circuit breaker for direct mounting on poles, heavy transformers, and standard cross arms.
12KV Vacuum Circuit Breaker Technical Specifications:
Review the precise engineering parameters below to verify that the 12KV Vacuum Circuit Breaker aligns perfectly with your network’s capacity. The comprehensive data sheets detail the sensor capabilities and electrical performance of the ZW32-12TS series.
1. Sensor Parameters Data:
| No. | Parameter Name | Unit | Specification Details |
|---|---|---|---|
| 1 | Rated voltage | kV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 630 |
| 4 | Rated phase voltage ratio | — | (10/√3)kV / (3.25/√3)kV |
| 5 | Zero-sequence voltage rated transformation ratio | — | (10/√3)kV / (6.5/√3)kV |
| 6 | Phase voltage accuracy grade | — | 0.5 (3P) |
| 7 | Zero-sequence voltage accuracy class | — | 1 (3P) |
| 8 | Rated voltage load | MΩ | 2 |
| 9 | Rated voltage factor | — | 1.2Un continuous, 1.9Un (8h) |
| 10 | Rated phase current ratio | — | 600A / 1V |
| 11 | Zero-sequence current rated transformation ratio | — | 20A / 0.2V |
| 12 | Phase current accuracy grade | — | 0.5S (5P10) |
| 13 | Zero-sequence current accuracy class | — | 1 (10P30) |
| 14 | Rated current load | kΩ | 20 |
| 15 | Phase voltage capacitor takes power from rated power | W | 12 |
| 16 | Maximum number of available power modules | Each | 3 |
2. Electrical Performance Parameters Data:
| No. | Parameter Name | Unit | Specification Details |
|---|---|---|---|
| 1 | Rated voltage | kV | 12 |
| 2 | Rated insulation level | kV | 42 |
| kV | 75 / 85 (fracture) | ||
| 3 | Rated frequency | Hz | 50 |
| 4 | Rated current | A | 630 |
| 5 | Rated short-circuit breaking current | kA | 12.5 |
| 6 | Rated dynamic stable current | kA | 50 |
| 7 | Short-term thermal current | kA | 20 |
| 8 | Short-time thermal current time | S | 3 |
| 9 | Rated short circuit breaking current breaking times | times | 30 |
| 10 | Secondary circuit voltage | V | DC 24V ~ 28V |
| 11 | Mechanical life | times | 10000 |
| 12 | Secondary circuit 1-minute power frequency withstand voltage | V | 2000 |
| 13 | Allowable wear thickness of moving and static contacts | mm | 3 |
| 14 | Contact opening distance | mm | 9 ± 1 |
| 15 | Inter-polar central distance | mm | 340 |
| 16 | Altitude constraint | m | < 5000 |
| 17 | Weight | kg | 123 |
12KV Vacuum Circuit Breaker Structural Drawing:
To ensure precise installation and component identification for your vcb vacuum circuit breaker setup, refer to the detailed structural diagram below.
