<progress id="tpsus"><nobr id="tpsus"><optgroup id="tpsus"></optgroup></nobr></progress><tbody id="tpsus"><div id="tpsus"><address id="tpsus"></address></div></tbody>
<tbody id="tpsus"></tbody>
<track id="tpsus"><div id="tpsus"></div></track><bdo id="tpsus"></bdo>
    1. <tbody id="tpsus"></tbody>

      1. <bdo id="tpsus"><dfn id="tpsus"><thead id="tpsus"></thead></dfn></bdo>
      2. <tbody id="tpsus"><div id="tpsus"></div></tbody>
        Product List
        FZW28-12(VSP5) Type Outdoor HV AC SF Insulation 6 Vacuum Load Break Switch
        FZW28-12(VSP5) type outdoor HV AC SF6 insulation vacuum load break switch is used to open and close load current and short-circuit current in the power distribution system with rated voltage 12kV, three-phase AC 50/60Hz. It is applicable to substations, industrial and mining enterprises, urban and rural electric power networks, especially to the occasions with frequent operation and urban and rural automatic power distribution networks for power network control and equipment protection. The switch has the functions of manual operation and electric operation. The product conforms to the standards of IEC 60265-1, IEC62271-103 & GB/T3804: High voltage AC load break switch.
        Ambient conditions
        1. Altitude: ≤3000m;
        2. Ambient temperature: -30℃~+45℃;diurnal temperature rang ≤25℃;
        3. Wind speed: ≤35m/s;
        4. Earthquake intensity: ≤grade 8;
        5. Relative humidity: monthly average ≤90%; daily average ≤95%;
        6. Ice thickness: ≤10mm
        7. Pollution degree: ≤Ⅳ(GB5582);
        8. Applicable occasions: no fire and explosion danger, no chemical corrosion and no frequent severe vibration.

        Technical specification
        No. Item Data
        Operating method Manual or electric(persistent excitating magnet)
        1 Rated value Rated voltage 12KV
        Rated current 630A
        Rated short-time withstand current(4s) 12.5 16 20
        Rated short-circuit closing current(peak) 31.5 40 50
        Rated frequency 50/60Hz
        2 1min P.F withstand current Operating voltage AC220V(80%~110%)
        Phase to earth 42KV
        Phase to phase 42KV
        Across open contacts 48KV
        Secondary phase to earth 2KV
        3 Lightning impulse
        withstand current(peak)
        Phase to earth 75KV
        Phase to phase 75KV
        Across open contacts 85KV
        4 Rated gauge pressure of SF6 gas

        Concentration up to 93% at 0 gauge pressure
        5 Manual rated operating strength 100~400N
        6 Main loop resistance ≤700μΩ/≤150μΩ
        7 Close-operating 184~220V closing time
        attract current ≤17A
        bouncing time≤10ms
        maintaining current≤
        Lowest closing voltage 120~160V
        8 Open-operating 184~220V opening time≤1.5s
        asynchronous time≤3ms
        Lowest maintaining attact voltage 45~85V
        9 Close/open-operating time difference between isolation clearance and vacuum arc-extinguishing chamber ≥10ms
        10 Power consumption ≤99W
        11 Short-circuit non-breaking test ≥1400A
        12 Air-sealed test(leakage detecting) No leakage at 0.2Mpa
        13 Contact gap of vacuum arc-extingushing chamber 7~9mm
        14 Contact over-travel of vacuum arc-extingushing chamber 3~4mm
        15 Across isolating distance 25~35mm
        16 Isolating clearance over-travel 6~13mm
        17 Net weight 185Kg

        Main function features
        1. SF6 gas insulation: SF6 gas is the non-toxic, non-combustible and electrical insulation gas, it has excellent arc-extinguishing performance;
        2. Besides the standard porcelain bushing, a variety of options are available including silicon rubber insulator on the epoxy equipment bushing;
        3. Visible Open/Close: The main contact position indicator marked by colors (Green-Open; Red-Close) can be easily visible from the ground. The indicator is connected directly to the main contact drive shaft assembly to ensure displaying the contact state accurately;
        4. Reliable sealing performance with IP67 Protection Level: The mature sealing technoloty assures reliable sealing performance. The shell is processed by die drawing once-shaping technology, so it’s easy for the case sealing with high air tightness and high mechanical strength.
        5. Free maintainance: The main loop of circuit breaker, the secondary component and the operation mechanisn are all sealed in SF6 gas(zero gauge pressure), so they are not affected by the external environment, and have stable & reliable performance as well as the advantage of free maintianance.
        6. Good performance of incoming and outgoing line: The switch can adopt cable incoming & outgoing method, or can use liquid silicon rubber corner bushing to make the distance between phases up to 280mm and ensure good performance of external insulation.
        7. Safe usage: Anti-explosive device mounted on the top of box can prevent heated gas or matters from spattering out once the switch fault occurs.
        Outline and installation dimension