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Load switch used vacuum interrupter

  • Type: TF-12/630-20(BGE702A)

  • Vacuum Tube main technique parameter
  • Parameter name Unit Value

    Rated voltage

    		 kV 12

    Rated normal current

    		 A 630

    Rated frequency

    		 Hz 50

    Rated active load breaking current

    		 A 630

    Rated loop-locked breaking current

    		 A 630

    Rated short-time withstand current

    		 kA 20

    Rated short-circuit continuous time

    		 S 3

    Rated peak withstand current

    		 kA 20

    Rated short-time (1 min) frequency withstand voltage

    		 kV 42

    Rated electric cable be charged breaking current

    		 A 10

    Rated short-circuit making current

    		 kA 50

    Rated lightning impulse withstand voltage

    		 kV 75

    Rated contact pressure time-limit loop resistive

    		  µn ≤40

    Mechanical life

    		10000

    Contact automatic

    		 N 40±20

    Force required to hold contacts open at full stroke

    		 N 70±20

    Contact-wear allowance thickness

    		 Mm 3

    Internal gas pressure

    		 Pa ≤1.33×10-3

    Shelf life

    		20