VSP series solid vacuum circuit breaker (hereinafter referred to as circuit breaker) is a three-phase indoor switchgear of AC 50Hz and rated voltage of 12 kV, used to control and protect the electric devices in industrial and mining enterprises, power plants, transformer substations, meanwhile, it can be used for the locations where requires frequent operation.

●Accordance with GB1984-2014 < High-voltage alternating current circuit-breakers>

●Accordance with JB3855-1996 < Indoor high-voltage altemnating-current vacuum circuit breaker of 3.6-40.5kV>
●Accordance with DL403-91<Specification for indoor high-voltage alternating-current circuit breaker of 10-35kV>
●Conformity with relevant requirements of IEC62271-100
●Due to its integrated design of operating mechanism and body of circuit breaker, this circuit breaker not only can be used as a fixed installation unit, but also can be equipped with a driving mechanism and form into handcart unit for using

●VSP uses a mature spring operating mechanism, stable, reliable, long life, simple operation, excellent corrosion resistance, life expectancy is only minimal maintenance

●VSP solid sealing pole of the use of environmentally friendly high strength insulation material, with an altitude of 2000 meters above sea level, a unique contact material and a plum blossom contact application, so that the VSP sealed vacuum circuit breaker is suitable for medium pressure system of various occasions

●All producis have been tested in hundreds of times before the factory, to ensure the performance of the product is in the most stable state 

●The shape size and the type of the interlocking system are fully compatible with the domestic mainstream medium voltage switchgear KYN28 cabinet, and the design cost is greatly reduced 

●The use of advanced imported test equipment, the real record of the no-load mechanical characteristics of each product, and to provide users with these characteristics curve, to ensure the reliability of product quality 

●According to extend the GB1984-2014 electrical life of E2 level ano prolong the life of machine m2 and volume of current switching has very low restrike probability C2 type test 

●Product assembly use fixture ensure size consistency, all products in the factory have been standard cabinet push test cabinet, to ensure the product interchangeabililty and versatility

●Altitude > 2000m 

●Air relative humidity: daily average ≤ 95%, monthly average≤90%

●Saturated vapor pressure: daily average  ≤2.2 x 10^-3MPa, monthly average ≤ 1.8 x 10^-3 MPa 

●Seismic intensity ≤ 8 level

●Installation places without fire, explosion, serious filthy, chemical corrosion and violent vibration