GW4 Double-Column Horizontal Centre Break Disconnector

GW4 product is a double-column horizontal rotary type outdoor high-voltage disconnector. Rated voltage covers 12-550kV.

Conductive Material & Current-Carrying Performance
Novel Contact Structure
Fully Sealed Bearing Housing
Maintenance-Free Transmission System

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Product Highlights Technical Specification Industries We Serve

Product Highlights

Conductive Material & Current-Carrying Performance

Conductive arms employ slot-shaped aluminum alloy profiles (high conductivity, high strength) with anodized surface treatment. Combines corrosion resistance, high mechanical strength, and excellent heat dissipation. Supports maximum rated current of 5000A with short-time withstand current up to 63kA.

Novel Contact Structure

Self-energized contact fingers utilize chrome bronze alloy’s inherent elasticity to clamp the contact blade. Beyond meeting standard current-carrying requirements, it satisfies short-term thermal load and electromagnetic force under short-circuit faults while offering superior mechanical wear resistance.

Fully Sealed Bearing Housing

Die-cast aluminum bearing housing adopts fully sealed structure. Prevents lubricant loss or solidification, eliminating oil replenishment maintenance. Internal combined-support bearing design ensures gravity torque and horizontal component force are respectively borne by two specialized bearings.

Maintenance-Free Transmission System

Transmission system designed per maintenance-free requirements. Self-lubricating bushings paired with stainless steel pins prevent binding issues in rotating components.