| 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 Introducing the 12kv High Voltage Embedded Pole for Vacuum Circuit Breaker, the perfect solution for all your vacuum circuit breaker needs! This top-of-the-line product is designed to provide reliable and efficient performance, making it an ideal choice for businesses looking to enhance their operations.
The Embedded Pole is a cutting-edge technology that uses insulation material to seal the vacuum interrupter and the main loop conductive element, as well as the insulation support as a whole. This unique design offers several advantages, including superior insulation performance, high mechanical strength, and excellent resistance to environmental factors such as moisture and dust.
With its 12kv rating, this Embedded Pole is perfect for use in a wide range of applications, including power distribution, industrial automation, and more. It is also compatible with a variety of vacuum circuit breaker parts, making it a versatile and flexible solution for businesses of all sizes.
At our company, we are committed to providing our customers with the highest quality products and services. That's why we have carefully designed and tested this Embedded Pole to ensure that it meets the highest standards of performance and reliability. Whether you are looking to upgrade your existing vacuum circuit breaker or are starting a new project from scratch, this product is sure to exceed your expectations. This embedded pole is mainly applied to VZN63-12kV series VCB. 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 | 3150/4000 |
| Rated frequency | Hz | 50/60 |
| Rated short-time power frequency withstand voltage(1min) | kV | 48 |
| Rated lightning impulse withstand voltage | kV | 95 |
| Rated short-circuit breaking current | kA | 31.5/40/40/50 |
| Rated short-time withstand current | kA | 80/100/125 |
| Rated peak withstand current | kA | 80/100/125 |
| Rated short-circuit making current | kA | 31.5/40/40/50 |
| 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 | 140±50 |
| Force required to hold contact open at full stroke | N | 220±50 |
| Circuit resistance at lowest rated contact force | μΩ | ≤20 |
| 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 | 9±1 |
| Average opening speed | m/s | 1.2±0.2 |
| Average closing speed | m/s | 0.6±0.2 |
| Rated contact pressure | N | 4600±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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