| Customization: | Available |
|---|---|
| Electricity Type: | AC |
| Number of Pole: | 3 |
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The 12kv High Voltage Embedded Pole for Vacuum Contactor is designed with an insulation material that effectively seals the vacuum interrupter and the main loop conductive element. The insulation support is integrated into the pole, resulting in a simple assembly process, stable weight, high reliability, and excellent tolerance to environmental pollution.
This embedded pole is specifically designed to be used with indoor and outdoor vacuum circuit breakers or vacuum distribution devices. It is particularly beneficial in frequent operation environments such as electric power, machinery, chemical industry, metallurgy, mining, and other departments. With a frequency of 50Hz/60Hz and rated voltages of 12kV, 17.5kV, 24kV, 27.5kV, and 40.5kV, this embedded pole is a versatile and reliable solution. This product is used in embedded pole of vacuum contactor. Meets or exceeds the requirement of IEC60694 and JB-T11203-2011.Specification of VI
| Parameter item | Unit | Data |
| Rated voltage | kV | 12 |
| Rated current | A | 400 |
| Rated frequency | Hz | 50/60 |
| Rated short-time power frequency withstand voltage(1min) | kV | 48 |
| Rated lightning impulse withstand voltage | kV | 59 |
| Rated short-circuit breaking current | kA | / |
| Rated short-time withstand current | kA | / |
| Rated peak withstand current | kA | / |
| Rated short-circuit making current | kA | / |
| 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 | ≤25 |
| 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 | 0.8±0.2 |
| Rated contact pressure | N | / |
| 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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