High insulation level, high reliability, current up to 3150A;
Arc extinguishing principle of self-energy arc extinguishing together with auxiliary compressed air is adopted, with strong arc extinguishing ability, low operating power, mechanical life of 10000 times and electric life of 20 times;
Modular design and block layout can realize various primary schemes;
The shell is made of aluminum alloy with low eddy current loss and strong corrosion resistance;
High intelligence to realize on-line monitoring.