PRODUCT DETAILS
This new type of environmentally friendly composite insulated ring main unit switch has the advantage of using less solid insulating parts compared to solid cabinets, has the advantage of not being filled with SF6 gas compared to SF6 inflatable cabinets, and has a smaller volume compared to air insulated cabinets. Advantages of effective utilization of urban space resources. In summary, it not only reduces the hard-to-degrade solid insulation materials but also suppresses the emission of greenhouse gas SF6. At the same time, it has a simple structure, small size, and flexible combination.
Precautions for use of environmental conditions
◆The altitude does not exceed 2000m, and the cracking degree does not exceed 8 degrees;
◆The ambient air temperature is lower than +50℃ and not lower than -40℃; the daily average relative temperature is not greater than 95%, and the monthly average is not greater than 90%;
◆It is not suitable for use in installation places with frequent severe vibrations, water vapor, gas, chemical corrosive deposits, salt spray, dust and dirt that significantly affect the performance of the mechanism, as well as fire and explosion risks.
Rated voltage | 12kV | Rated short circuit duration | 4s |
Rated frequency | 50Hz | Rated short circuit making current | 50kA |
Rated current | 630A | theoretical operation | 10000times |
Rated short-time withstand current | 20kA | Main circuit resistance | ≤80μΩ |
Rated peak withstand current | 50kA | 1min power frequency withstand voltage | 42/48kV |