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    Gw4 outdoor double – column high voltage isolating switch when open horizontally

    35kV complete set of isolating switch is composed of GW4-40.5 (D) (W) isolating switch body, CS11 or CS8-6D manpower operating mechanism, transmission accessories, etc. It can also be equipped with CJ6 type and other electric mechanisms.
    110kV complete set of isolating switch is composed of GW4-126 (D) (W) type isolating switch body, CS14G manpower operating mechanism, transmission accessories, etc. It can also be equipped with CJ6 type and other electric mechanisms.
    The isolating switch is a double-column horizontal opening type isolating switch. Made into a single-pole type, when the three poles are used synchronously, the poles are connected by connecting rods. Each single stage consists of base, post insulator, outlet socket and contacts It is composed of other parts, and the two-pillar insulating porcelain bottles are installed on the bearings at both ends of the base in parallel with each other, and are perpendicular to the base. The main conductive parts are respectively installed above the two-pillar insulating porcelain bottles, and are used with the pillar insulating porcelain bottles.Rotate about 90°.

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    ◆All adopts hot-dip galvanizing process for anti-corrosion treatment. The parts that cannot be guaranteed to be rotated by hot-dip galvanizing are generally made of stainless steel. Fasteners below M8 are made of stainless steel, and the rest are hot-dip galvanized.
    ◆Conductive part of the copper tube soft connection type, the middle contact is a "handshake" type self-operated contact finger, the spring external pressure type has no current passing through, the isolation switch has only one contact point in the middle, and the rest are fixed by soft connection.
    <A new contact structure is adopted, one end of the contact piece is fixed with the contact seat, and the contact pressure is generated by the deformation of the contact piece and the spring, so that the sliding contact of the end of the contact finger is changed to a fixed contact, which improves the reliability of conduction;
    . The finger spring is changed to an external type to avoid spring shunting;
    <Increase the magnetic lock plate to improve the dynamic and thermal stability performance.
    ◆The rotating part is equipped with a self-lubricating sleeve, no need for grease.
    ◆The main terminal is flat type. When the current level is 630A, the surface of the conductive parts is plated with tin; when the current level is 1250A-4000A, the surface of the conductive parts is plated with silver.
    ◆The upper and lower caps of the porcelain pieces are hot-dip galvanized to prevent rust, and the porcelain pieces with different creepage distances can be selected according to the different pollution levels in the area; in the production process, the positive difference is controlled, and the creepage distance is designed by comparing the nominal value.
    The standard value is designed to be high.
    ◆Strut insulators for switches have high strength and density, are stable and reliable. The formula is made of high-strength ceramic materials, which reduces the dispersion of product strength and increases the tensile strength of the product.
    There is a large strength reserve, so that the product is stable and reliable in operation.
    ◆Each bearing seat of the isolating switch is equipped with a shaft assembly, and the two shaft assemblies are connected and driven by connecting plates and adjusting screws.
    ◆The soft connection of the copper braid in the outlet socket is fastened on the conductive rod and the wiring board respectively, and the wiring board is used by the user to connect the line.
    ◆The contact fingers of the middle contact part are assembled in pairs, and the self-operated contact fingers are adopted, which are in the form of a turn-in type, so as to reduce the wear between the contacts and the contact fingers when opening and closing, and improve the service life.
    ◆When the isolating switch is attached with an earthing switch, the interlocking of the main conductive circuit and the earthing switch shall be ensured by the fan-shaped plate and arc-shaped plate on the base. When the main conductive circuit is closed, the earthing switch cannot be closed, and the earthing switch is closed.
    When the switch is on, the main conductive circuit cannot be switched on. When equipped with CS8-6D, the interlocking between the isolating switch and the grounding switch is realized by the interlocking board on the mechanism.


    ◆Isolating switch adopts the structure of double-column opening and contact transfer, which has the ability to automatically clean the contacts and improves the contact reliability;
    ◆The contact finger is made of new material with high strength, high conductivity and high elasticity. The contact is clamped by the elastic force of the contact finger itself, which avoids the current reduction of the contact clamping force caused by spring corrosion and thermal annealing.
    A vicious circle of increased contact resistance and increased contact heating;
    ◆The rotating part of the isolation switch is designed according to the requirement of maintenance-free. The rotating seat is designed as a sealed structure, water vapor, dust and harmful gases cannot enter, so that the bearing and lithium molybdenum disulfide lithium-based lithium-based grease will always work in?In a good environment, the bearing will never rust, the grease will not be lost, and it will never dry up, so that the operating torque of the isolating switch will not increase after long-term operation. Use stainless steel shaft pins to match with oil-free self-lubricating bearings?Structure; the steel parts are hot-dip galvanized to ensure that the disconnector is flexible, light, reliable, and never rusted.

    Shape and installation dimensions


    The main technical parameters


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