| Breaking Capacity: | High Voltage Circuit Breakers |
|---|---|
| Operation: | Energy-storage Type |
| Speed: | Normal Type Circuit Breaker |
| Arc-extinguishing Medium: | Vacuum |
| Installation: | Fixed |
| Structure: | ACB |
| Samples: |
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| Customization: |
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Audited Supplier Get ready to experience the ultimate in reliability and convenience with our 12kv Integrated Structure High Voltage Embedded Pole for VCB! This cutting-edge technology uses top-quality insulation material to seal the vacuum interrupter and main loop conductive element, as well as the insulation support as a whole. The result? Simple assembly, stable weight, high reliability, and strong environmental pollution tolerance.
Perfectly matched with relevant indoor and outdoor vacuum circuit breakers or vacuum distribution devices, our Embedded Pole is especially useful in frequent operation places like electric power, machinery, chemical industry, metallurgy, mining, and more. With a frequency of 50Hz/60Hz and rated voltage options of 12kV, 17.5kV, 24kV, 27.5kV, and 40.5kV, you can trust our Embedded Pole to deliver the power and performance you need. Plateau type, used for altitude 4000 meters. Meets or exceeds the requirement of IEC60694 and JB-T11203-2011. Don't settle for less - choose our Embedded Pole for the ultimate in high voltage reliability and convenience!
Specification of VI
| Parameter item | Unit | Data |
| Rated voltage | kV | 12 |
| Rated current | A | 1250/1600 |
| Rated frequency | Hz | 50/60 |
| Rated short-time power frequency withstand voltage(1min) | kV | 79 |
| Rated lightning impulse withstand voltage | kV | 145 |
| Rated short-circuit breaking current | kA | 31.5 |
| Rated short-time withstand current | kA | 63 |
| Rated peak withstand current | kA | 63 |
| Rated short-circuit making current | kA | 31.5 |
| Rated short-circuit duration | s | 4 |
| Rated single capacitor bank breaking current | A | 400 |
| Rated back to back capacitor bank breaking current | A | 400 |
| Rated operating sequence | O-0.3s-CO180s-CO | |
| Breaking operations of rated short circuit breaking current | times | 30 |
| Mechanical life | times | 10000 |
| Contact automatic closing ability | N | 120±50 |
| Force required to hold contact open at full stroke | N | 200±50 |
| Circuit resistance at lowest rated contact force | μΩ | ≤35 |
| Contact limit erosion | mm | 3 |
| Internal gas pressure of vacuum interrupter | Pa | ≤1×10-3 |
| Partial discharge | Pc | ≤5 |
| Parameter item | Unit | Data |
| Clearance between open contacts | mm | 11±1 |
| Average opening speed | m/s | 1.2±0.2 |
| Average closing speed | m/s | 0.6±0.2 |
| Rated contact pressure | N | 3100±200 |
| Contact bouncing duration at closing operation | ms | ≤2 |
| Closing and opening non-simultaneity of contacts | ms | ≤2 |
| Maximum rebound during opening | mm | ≤2 |
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Audited Supplier 
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