ASKV5-G Embedded Poles Vacuum Circuit Breaker(VCB)

  Application  
The vacuum circuit breaker can be widely used in power plants, power grids, metallurgy, petrochemical, urban infrastructure construction, as well as projects such as airports, buildings, and subways. In distribution systems, it is suitable for controlling and protecting cables, overhead lines, transformers, motors, generators, and capacitor banks.

  Standards  
The technical parameters of the vacuum circuit breaker fully comply with GB1984, GB/T11022, and China's power industry standard DL, while also meeting the requirements of IEC62271-100, IEC56 standards, and the relevant standards of other major industrialized countries.

  Features  

The primary conductive circuit of the circuit breaker adopts a solid insulation technology for the solid-sealed pole. This solid-sealed pole uses advanced Automatic Pressure Gel (APG) technology to directly seal the vacuum arc extinguishing chamber and other components of the primary conductive circuit in a special epoxy resin material, forming a primary conductive circuit module. The installation end of the solid-sealed pole is designed with inner and uter double skirts. This pole features high creepage distance, high mechanical strength, high component precision, fewer components, no need for secondary adjustments, and minimal overlap areas. The electric field distribution on the pole is uniform, preventing localized electric field concentration that could damage organic insulation.

At the same time, this structural design greatly simplifies the assembly process of the primary conductive circuit, completely eliminating the problem of loosening connection bolts due to vibrations during operation. This ensures the high reliability of the electrical connection in the primary conductive circuit and makes maintenance-free operation of the circuit breaker's primary conductive circuit possible.

  Operating Safety  

The VCB is equipped with a complete mechanical and electrical interlocking device, ensuring high operational reliability and a long service life. When paired with a compatible switchgear, it can perform safe distribution functions, ensuring the safety of both the operator and the equipment.

  Testing  
The vacuum circuit breaker has passed the following various tests to ensure its safe operation under normal conditions:

· Type Tests: Power frequency withstand voltage, lightning impulse withstand voltage, temperature rise, short-time and peak withstand current, short-circuit current switching capacity, and cable charging current switching test.

· Factory Tests: Mechanical characteristic tests, main circuit power frequency withstand voltage test, insulation performance test for auxiliary and control circuits, main circuit resistance test, interlocking operation test, and mechanical and electrical operation tests.

  FAQ 

1. What is an embeded pole (solid-insulated) vacuum circuit breaker?

An embeded  pole vacuum circuit breaker uses epoxy resin and similar materials to encapsulate the vacuum interrupter and conductive parts, forming a fully enclosed insulated module. It offers high protection and a compact structure.

2. What is an assembly pole (insulated cylinder type) vacuum circuit breaker?

An assembly pole (insulated cylinder type) vacuum circuit breaker installs the vacuum interrupter inside an insulating cylinder (such as ceramic or composite bushings) and uses air or gas insulation. It has a relatively simple structure.

3. What is the core difference between the two?

Insulation method: Embeded pole pole uses epoxy resin encapsulation; Assembly pole relies on insulating cylinders and air gaps.

Protection level: Embeded pole offers better dust and moisture resistance; Assembly pole requires additional protective measures.

Size: Embeded pole is more compact; Assembly pole is larger in size.

Heat dissipation: Assembly pole dissipates heat better; Embeded pole relies on material thermal design.

4. Which is more suitable for harsh environments?

Due to its fully sealed design, the embeded pole type is better suited for humid, dusty, or corrosive environments (such as mining and chemical industries).

5. Which is easier to maintain?

The assembly pole has a simpler structure, and the vacuum interrupter can be replaced independently. The embeded pole type requires replacing the entire module, resulting in higher maintenance costs.

6. What about the price difference?

Because of its more complex manufacturing process, the embeded pole type typically costs more than the assembly pole but offers a longer service life.

7. How to choose?

Choose embeded pole: when high protection, limited space, and long service life are required.

Choose assembly pole: when budget is limited, higher heat dissipation is needed, or frequent maintenance is expected.