VHE-12 indoor high voltage vacuum circuit breaker

详情

VHE-12 indoor high voltage vacuum circuit breaker 
■ Overview
VHE-12 vacuum circuit breaker with 12kV rated voltage，Indoor distribution device of three-phase ac 50HZ，Is a new product that developed by our company independently，We have the independent intellectual property rights，The product can be compatible with the VS1.VD4 and so on.
In the field of medium voltage，Especially 12 kV， Vacuum circuit breaker has been a mainstream product.  The brilliant achievement of vacuum circuit breaker cant be separated with the progress of vacuum circuit breaker technology inseparable.  The techonology of embedded poles is the embodiment of the great progress of vacuum circuit breaker. Vacuum circuit breaker insulation has experienced air insulation- composite insulation - solid insulation， It has formed three generations of vacuum circuit breaker.  In the first generation-air insulation， The live part all exposed in air，Its insulation level changes with the air humidity，Dust and the collision of the transport process ，And easy to be influenced by small animals and other foreign bodies.  In the second generation- composite insulation，The arcing chamber protected by epoxy resin sleeve. But the sleeve does not wrap the high-voltage electric parts wholly，It would be affected by dust、Moisture、Insects and so on.  The third generation of insulation is embedded pole，By the APG process, Using epoxy resin to seal the whole arc extinguish chamber and the upper and lower outlet. To do this，Not only reduce the arcing chamber size and also completely unaffected by the external environment (dust, moisture, etc.) so that improve the weatherability，Epoxy resin at this time not only as a part of the main insulation，At also be a support for the mechanical，The electric field distribution and the stress distribution is superior to the various shapes of insulating clapboard structure.  Circuit breaker can be as a handcart type and fixed type，So cooperate with KYN28A、XGN2、GG-IA and convenient in oil-free transform.
■ The model name and meaning
      V H   E12 /  □ □
Rated short circuit breaking current（KA）
                                       Rated current（A）
                                       Rated voltage（KV）
                                       Product series No.
                                       Hanguang Senyuan brand
                                       Vacuum circuit breaker 
■ The normal conditions

21. Ambient temperature: max +40°C min -15℃(conveyance under -30℃ is allowed)；
21. Altitude: ≤1000m；
21. Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity:≤90%; daily average saturated vapor pressure: ≤2.2*10^-3 MPa; monthly average value :≤1.8*10^-3 MPa；
21. Earthquake intensity: ≤8 degree；
21. The installation should be free from fire, Explosion, Eevere vibration, Chemical corrosion and serious pollution.