SPV-12 type outdoor vacuum circuit breaker

SPV-12 type outdoor vacuum circuit breaker is three-phase, AC 50Hz outdoor high voltage distribution equipment with 12kv rated voltage, which can be used to break and close load current, overload current and short-circuit current in the electric power system. It is used to protect and control the power distribution system in Transformer substation, Industrial and mining enterprises, and it is especially suitable for the transformation of the power network in rural and city. Spv series VCB applies arc theory. it use small spring operation structure for breaking and closing the vavle.direct transmission is used in this structure ,therefore, it only needs a few part for breaking and close the vavle.it has high credibility and long life span(it’s mechanic life span is 20,000 times.). The phase spacing is 340mm .it can meet the usage in high altitude high temperature and humid areas. It avoid any phase to phase fault and earth fault because of small phase spacing. The shell of circuit breaker applies stainless steel which is corrosion resistant for forever use The insulation of overall Encapsulating pole and current transformer applies import outdoor peroxide resin, which is resistant to lower temperature ultraviolet radiation and ageing with long life span. NOItemUnitParameter1Rated voltagekV122Rated frequencyHz503Rated currentA630/12504Rated short circuit breaking currentkA20/255Rated short circuit making currentKA506Rated operating programO-0.3s-CO-180s-O7Rated peak withstand currentkA509Rated short time withstand currentkA20/4 ,25/410Rated peak value withstand currentkA5011lightning impulse withstand voltageKV75/8512Mechanical lifetimes20000