The GW4B-40.5 outdoor AC high-voltage disconnector is a three-phase AC 50-60Hz high-voltage switchgear. It is used in power systems with a maximum voltage of 40.5kV for switching circuits under voltage-without-load conditions.
The earthing switch part of this product is structured into three types: non-earthed, single-earthed, and double-earthed. Classified by application area, it includes standard type and anti-pollution type (marked as "W"). The earthing switches are available in "Type I" and "Type II" structures, where the "Type II" earthing switch has the same short-circuit withstand capacity as the main blade of the disconnector in terms of electrical parameters.
This product is equipped with a manual operating mechanism and can be fitted with an electromagnetic lock to prevent misoperation.
All exposed components of this product are made of aluminum alloy, stainless steel, or treated with hot-dip galvanizing process, ensuring no rust during long-term use. It also features five-prevention functions.
Altitude: Not exceeding 1000m (products with special requirements can be provided).
Ambient temperature: -30℃ to +40℃ (-40℃ for alpine regions).
Wind speed: Not greater than 35m/s.
Seismic intensity: Not exceeding 8 degrees.
Ice thickness: Not greater than 10mm.
Installation site: Free from severe dust, dirt, flammable substances, explosion hazards, chemical corrosion, and severe vibrations.
Installation foundation: Shall be level.
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