outdoor vacuum circuit breaker (ZW32-12)

Summary: ZW32-12 series outdoor vacuum circuit breaker is used in rated voltage 12kV, three-phase 50Hz controller switching equipment, it mainly used for open circuit, close in power systems load current, overload current and short-circuit current. It’s suitable for substations, industrial and mining enterprises power distribution systems for protection and control, and rural power grid frequent operation place. The circuit breaker with small volume, light weight, prevent condensation, maintenance-free and other characteristic, can adapt a bad weather and pollution environment. Complies with the standard: GB1984<AC high-voltage circuit breaker> GB11022<High-voltage switchgear and control equipment standard common technical requirements> GB311.1-6<Insulation co-ordination for high voltage transmission and distribution equipment > GB763<AC high-voltage electrical in long-term work of fever > GB2706<AC high-voltage electrical move,thermal stability test methods> GB3309<High-voltage switchgear at ordinary temperatures of mechanical test > DL/T593<High-voltage switchgear common order technical conditions> Mechanical technical parameters: ItemUnitParameterrated voltageKV12rated frequencyHz50rated currentA630rated short-circuit breaking currentKA20rated peak withstand current(peak value)KA50rated short-time withstand currentKA20rated short-circuit closing current(peak value)KA50mechanical lifetimes10000rated short-circuit breaking current breaking timestimes30power frequency withstand voltage(one minute):(humidity)(dry)alternate with,on earth/fractureKV42/48draught of thunder withstand voltage(peak value)alternate with,on earth/fractureKV75/85Secondary circuit one minute of power frequency withstand voltageKV2 Outline dimensional drawing: ONarc extinguish chamberInsulated tubeOFFConductive clipbraidconnectioninsulating tension polecontact pressure reedbreak-brake spring10. drive connecting plate 11. the mechanism output shaft 12. control mechanism 13. mechanism case 14. current transformer Operating gripisolation spindlecircuit breaker manual points close handlescircuit breaker energy-storage handlesdeciliter instructionsconnecting plugcurrent transformerinsulatorisolation frame10. insulating tension pole 11. wiring board(into lines) 12. isolated blade 13. wiring board(outlet end) 14. insulated tube