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      Hubei Dayu Hanguang Vacuum Electric Co.,Ltd.
      CN EN

      Vacuum interrupter for 12kV-40.5kV indoor VCB TD314Y

      Model:VITD12/630-25

      Category:Vacuum interrupter


      Product details

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      Main Technical Specification
      VOLTAGE RATINGS
      Rated voltage(Ur)kV12
      Rated short-time(1min)power-frequency withstand voltage(Ud)kV48
      Rated lightning impulse withstand voltage(Peak)(Up)kV85
      Rated frequency(fr)Hz50
      CURRENT RATINGS
      Rated current(Ir)A630/1250
      Circuit resistance at lowest rated contact forceμΩ≤20
      Rated short-circuit breaking current(lsc)kA25
      Breaking operations of rated short circuit breaking currentTimes30
      Rated short-time withstand current(lk)kA25
      Rated duration of short-circuit(tk)s4
      Rated peak withstand current(lp)kA63
      Rated short-circuit making current(lMc)kA63
      Rated cable-charging breaking current(lc)A25
      Rated breaking current of single capacitor bank(lsb)A400
      Rated breaking current of back-to-back capacitor bank(lbb)A400
      MECHANICAL DATA
      Weight of movable partskg≤1.3
      Closing force due to bellow and atmosphereN120±50
      Force required to hold contacts open at full strokeN190±60
      MECHANICAL REQUIREMENTS
      Clearance between open contactsmm11±1
      Average opening speed (contact close position~75%contact gap)m/s1.0±0.25
      Average closing speed (30%contact gap-contact close position)m/s0.6±0.15
      Rated added external contact final forceN2000±100
      Added external contact force at contact touch point1600±100
      Contact bouncing duration at closing operationms≤2
      Closing and opening non-simultaneity of three-phase contactsms≤1
      Maximum rebound during openingmm≤3
      LIFE
      Storage lifeyears20
      Rated mechanical enduranceTimes10000
      Contacts limit erosionmm3

      Relevant information