GW4 Outdoor HV AC Disconnector
GW4 Series 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
Features
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01
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.
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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.
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03
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.
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04
Maintenance-free transmission
Transmission system designed per maintenance-free requirements. Self-lubricating bushings paired with stainless steel pins prevent binding issues in rotating components.
Technical Specifications
Download
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Rated voltage（kV）
12, 24, 40.5, 72.5, 126, 145, 170, 252, 420, 550
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Rated frequency（Hz）
50/60
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Rated current（A）
Up to 5000
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Rated short-time withstand current（kA）
Up to 63
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Rated peak withstand current（kA）
Up to 164
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Operating Temperature（℃)
-50 ~ +55
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Ice coating（mm）
Up to 20
Tel : +021-61610502
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