New Concept Electric Inc.  

Product Name: Fzw28-12 Type Pole Mounted High Voltage AC Vacuum Load Switch Model NO.: FZW28-12 Brand: Nce Certification: ISO9001 Structure of Operating: Electric Common Model: Fzw Switching Mode: Double-Throw Type Run: Turn the Horizontal Series: Three Grounding: Single Ground Number of Poles: Three Pole Movement Mode: Horizontal Rotary Type Grounding Mode: Grounding Operation: Electric Installation: Outdoor High-voltage Structure: Three-column Disconnector Type: High-voltage Trademark: NCE Transport Package: Plywood Box Specification: 12kV Origin: China HS Code: 85352100 Product Description FZW28-12 type pole mounted high voltage AC vacuum load switch is suitable for installation areas on column, and has manual and electrical operation functions. Switch main body is improved based on the basis of VSP5-12 from Japan Toshiba, and is more suitable for our country's distribution network use requirements. This switch is maintenance free load switch, and use vacuum extinction and SF6 gas for insulation medium between ground and phase, it is suitable for 10kV distribution line user incoming demarcation point of responsibility, and also suitable for branch line connection point that meets requirements.DescriptionUnitUsing EnvironmentAmbient air temperatureMax temperatureºC+50Min temperature-20Max daily temperature differenceK30Altitudem≤3000Solar radiation intensityW/cm20.1Pollution classIVIcing-thicknessmm10HumidityAverage value of daily relative humidity%≤100Average value of monthly relative humidity≤95Earthquake tolerance abilitydegree≤8Rated voltagekV12Rated currentA630CT parametermeet customer's requirementRated frequencyHz50Rated short time (1 min) power frequency withstand voltage(to ground/fracture)kV42/48Rated lightning impulse withstand voltage(to ground/fracture)kV75/85Rated short circuit making current(peak value)kA50Rated short time withstand current(4s)kA20Rated peak value withstand currentkA50Rated short circuit current break timesTime30Operation mechanismspringMechanical life of vacuum circuit breakerTime10000Shell protection degreeIP67Yearly leakage rate%<0.01Switch use full insulation, full seal structure, and high voltage part, low voltage control circuit and operation mechanism are all sealed inside switch cabinet. And inside cabinet, there is SF6 gas, switch main circuit outlet terminal is protected by insulation cable.Operation mechanism skillfully combines spring energy storage mechanism with electromagnetic mechanism which has free release device, to enable equipment to have manual/auto operation functions and switch operation more flexible. This enables reliable open for switch when under voltage loss situation.Switch is mounted by suspension or sear type, which makes it more convenient and flexible to install on the pole.Switch has distribution auto control interface. It can realize feeder automation function of distribution network by adding intelligent control box.