Load switches and combined electrical appliances are suitable for three-phase AC power systems, or used in conjunction with complete sets of power distribution equipment, ring network switch cabinets, combined substations, etc., and are widely used in domain network construction and transformation projects for high-level industrial and mining enterprises. Buildings and public facilities, etc., can be used as ring network power supply or terminals, playing the role of distribution control and protection of electric energy. The technical performance of this product complies with the provisions of the publication/High Voltage Load Switches, Part 1 High Voltage Load Switches High Voltage AC Load Switches High Voltage AC Load Switches Fuse Combination Appliances AC High Voltage Load Switches Fuse Combination Appliances AC High Voltage Load Switches Above and Below the Rated Voltage. This product has the advantages of large breaking capacity, safety, reliability, long electrical life, frequent operation, compact structure, small size, light weight and basically no need for maintenance. It has breaking rated current and overload current. It has the ability to break short-circuit current and prevent equipment from running out of phase. The switch has an obviously visible isolation break. It is equipped with an electric spring mechanism of the grounding switch with closing ability, and can be remotely controlled.
Environmental conditions
Altitude and below
Ambient temperature ℃
Humidity daily average is not greater than, monthly average is not greater
Conductive dust, corrosive gas and water Places with steam
Places with fire and explosion hazards
Places with frequent severe vibrations
Structural Features Edit Load switches and combined electrical appliances are mainly composed of frame isolation switches (current-limiting fuses of the combiner On the isolating switch) the vacuum switch tube is composed of a grounding switch spring operating mechanism, etc. The product has compact structure, small size, long life, strong closing and breaking capabilities, and is easy to operate and maintain. The vacuum switch is equipped with a spring operating mechanism, which uses an electric motor (with manual) and spring energy storage closing methods. There are two types of closing methods: electromagnet closing and manual opening and closing. Isolating switches, vacuum switches, and grounding switches are interlocked (mechanical interlocking to prevent misoperation.
Pneumatic load switches, a series of compressed air load switches, fuse combination appliances, are a new series of switch equipment developed by our company. It is suitable for the control and protection of transformers, cable overhead lines and other power equipment in three-phase power distribution systems. It is especially suitable for terminal substations and box-type substations of urban and rural power grids. It is also suitable for ring networks and dual-radiation power supply. Control and protection of the unit.
The series of compressed air load switches can switch load current and overload current.
The series of compressed air load switches and fuse combination appliances can break any current up to the rated short-circuit breaking current.
Main technical parameters
Type load switches and combined electrical appliances
br/> Mechanical characteristics
br/> Appearance and installation dimensions
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