•   ZW43-12 Outdoor High Voltage Permanent Magnet 630A Vacuum Circuit Breaker
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ZW43-12 Outdoor High Voltage Permanent Magnet 630A Vacuum Circuit Breaker

Model: ZW43-12

Description:

It's suitable for the power system with three-phase AC 50 Hz and rated voltage of 12KV. The permanent magnet switch is mainly used as a substation 10KV outlet switch and a line protection switch for closing and opening load current, breaking overload current and short circuit current in 10KV three- -phase AC power system.
  • General
  • Technical Parameter
  • ZW43- 12(G)/M630- -20 type outdoor high voltage permanent magnet vacuum circuit breaker (Hereinafter called permanent magnet switch) is suitable for the power system with three-phase AC 50 Hz and rated voltage of 12KV. The permanent magnet switch is mainly used as a substation 10KV outlet switch and a line protection switch for closing and opening load current, breaking overload current and short circuit current in 10KV three- -phase AC power system. The circuit breaker complies with GB1984- -2003 "High Voltage AC Circuit Breaker'", DL/T402 -2007 "High Voltage AC Circuit Breaker Ordering Technical Conditions", DL/T403- -2000 "12KV~40.5KV High Voltage Vacuum Circuit Breaker Ordering Technical Conditions" and other technical standards.

    Model Meaning

    Working Condition

    O Ambient temperature: -409~+40C. O Altitude: <≤3000mm. OWind pressure: Not more than 700Pa(Equivalent to wind speed 34m/s). O Pollution level: Not more than IV. OPlace should be no fire, explosion hazard, chemical corrosion and severe vibration,etc.  

    Drawing

    Environmental

  • No ltem Unit Data
    1   Rated voltage KV 12
    2   Rated insulation level   1 min power frequency withstand voltage   Dry test (phase to phase,to earth,Between open contacts) 42/48
      Wet test 34
      Lightning impulse withstand voltage (peak,phase to phase,between open contacts) 75/85
    3   Rated Current A 630
    4   Rated short circuit breaking current KA 20
    5   Rated operating sequence O~0.3-CO-180s-COS
    6   Rated short-circuit breaking current breaking time Times 30
    7   Rated short circuit closing current(peak) KA 50
    8   Rated peak withstand current
    9   Rated short-time withstand current 20
    10   Rated short circuit duration S 4
    11   Opening time (The time from the control unit to receiving the opening command to the separation of the three- phase contact) 0.040~0.060
    12   Closing time(The time from the control unit to receiving the closing command to the closing time of the three- phase contact 0.070-0.120
    13   Mechanical life Times 10.000
    14   Rated closing operating voltage V DC110
    15   Rated opening operating voltage DC110
    16   Overcurrent protection   Current setting multiple 0.2~2.5
      Setting the allowable error of the current ±10%
      Delay setting S 0~5
      Delay allowed error ±10%
    17   Quick break protection   Current setling multiple 2.5~10
      Setting the allowable error of the current ±10%
      Delay setting S 0~0.5
      Delay allowed error ±10%
    18   Control unit AC charging input current   Rating A 5
      Fluctuation range A 0.5~8
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