China High Voltage Disconnector 6-220kV - Leading Suppliers and Factory for Reliable Power Solutions

The entire conductive circuit, except for the sliding contact at the fracture, has fixed connections between other conductors such as the outlet end, contact head, and between the contact finger and conductive arm, with low contact resistance and reliable operation.

The conductive arm is made of rectangular aluminum alloy tubes, which have high strength, light weight, large heat dissipation area, and good anti-corrosion performance.

Made of special copper alloy to create a self operated contact finger. By relying on the elastic force of the contact finger itself to clamp the contact, the contact finger spring has been eliminated, eliminating the vicious cycle of reduced contact clamping force, increased contact resistance, and intensified contact heating caused by spring corrosion, shunt heating, and annealing. The contact is bent from copper plate and has a large connection area with the conductive arm. During the opening and closing process, the friction stroke between the contact and the finger is short, and the operating force is small.

The rotating part of the isolation switch is designed to be maintenance free. The rotating seat is designed as a sealed structure. Water vapor, dust, and harmful gases cannot enter, preventing the loss and solidification of molybdenum disulfide lithium based lubricating grease inside the bearing; The bearing seat is equipped with thrust ball bearings and radial ball bearings inside, which bear the gravity and horizontal force of the isolation switch through these two special bearings, so that the operating torque of the isolation switch will not increase after long-term operation.