GW4-10/35/66/110 GW4 outdoor substation high voltage isolating switch

Overview

All use hot-dip galvanizing process anticorrosion treatment, hot-dip galvanizing can not guarantee with the required rotation of the parts are generally made of stainless steel, fasteners M8 below stainless steel, the rest are made of hot-dip galvanizing.

The conductive part of the copper pipe is soft connection type, the middle contact is a "handshake" type self-reliant contact, the spring external pressure type no current through, the isolation switch has only one contact point in the middle, and the rest are fixed with soft connection.

A new contact structure is adopted to fx one end of the contact plate with the contact base, and the contact pressure is generated by the deformation of the contact plate and the spring, so that the sliding contact at the end of the contact finger is changed to a fixed contact, and the conductive reliability is improved. The contact spring is changed to the external type to avoid the spring split and increase the magnetic lock plate, improving the dynamic and thermal stability.

The rotating part is equipped with self-lubricating sleeve, no grease is required.

The main terminal is flat type. When the current class is 630A, the surface of the conductive part is tinned; When the current class is 1250A-4000A, the surface of the conductive part is plated with silver.

The top and bottom caps of the porcelain parts are hot-dip galvanized to prevent rust, and the porcelain parts with different climbing distances can be selected according to the different pollution levels of the regions; In the manufacturing process according to the positive difference control, the nominal value is higher than the standard value in the design of creepage distance.

The switch pllar insulator has high strength density, stable and reliable, and the formula is made of high-strength porcelain, which reduces the dispersion of product strength and increases the tensile strength of the product. The structural design has a large strength reservation degree for the product, so that the product can ensure stability and reliability in operation.

Normal operating environment

The isolation switch adopts the structure of double guan-open and contact turn-in, which has the ability of automatic cleaning of contacts and improves the contact reliability;

The contacts are made of new materials with high strength, high conductivity and high elasticity. By clamping the contact with the elastic force of the contact finger itself, the vicious cycle of decreasing the clamping force of the contact, increasing the contact resistance and aggravating the hair heat caused by spring rust and heat annealing is avoided. 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, harmful gases can not enter, so that the bearing, lithium molybdenum disulfide lithium grease will always work in a good environment, the bearing will never rust, the grease can not be lost, never dry, So that the operating torque of the isolation switch will not increase after long-term operation. Stainless steel shaft pin and oil-free self-lubricating bearing matching structure; The steel parts are hot-dip galvanized to ensure that the isolation switch is flexible, lightweight, reliable and never rusted.

Key attributes

Industry-specific attributes

Other attributes

Packaging and delivery

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