The design of vacuum arcing chamber and insulation support sheath pipe is compact , because the outlet line conduct pole is coated silicon rubber , it can be suitable for bad weather and pollution environment
3.
The type vacuum arcing chamber is miniaturization product , adopts copper and chrome contactor material , cup shape and longitudinal magnetic field structure , glass insulation case , sealing type shield barrel in the plate
4.
The product vacuum arcing chamber adopts porcelain case , cup shape and longitudinal magnetic field contactor structure , copper and chrome contactor material , it has the capacity of good open and close short circuit current
5.
The product vacuum arcing chamber adopts porcelain insulation case , the contactor adopts wolfram and copper material , it has the advantage of reliable performance , long life , small volume , no explosion danger , no pollution environment
6.
Apply the vacuum arcing chamber , air insulation and includes electric spring operation mechanism so that the product arcing ability is strong , short open circuit times is many , no fire and explosion danger , convenient operation , it is the product of good performance , and strong usefulness
7.
In this paper , associated with the key problem of 550kv sf6 high voltage circuit breaker which is used in gis of three gorges project , the mathematical models of static electrical field and one - dimensioned and two - dimensioned gas flow field during the overall breaking process in arc chamber of circuit breaker are developed . on the basis of gas discharge theory , the criteria to judge the interruption success is determined . through the combination of one - dimensioned and two - dimensioned gas flow field software , the problem that the primary two - dimensioned gas flow field software ca n ' t calculate the hot gas flow field has been effectively solved
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