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Address: 4-2, Building E, Huazhong Enterprise City, 16 North Avenue, Hankou, Wuhan City
HXGN15A-12 high voltage ring network switch cabinet
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Overview HXGNl5A-12 high-voltage ring network switchgear is suitable for three-phase AC 12kV, 50HZ distribution system, widely used in urban rural power grid construction and transformation projects, industrial and mining enterprises, high-rise buildings and public facilities, as the ring network power supply unit and terminal equipment, plays a role in the distribution of electric energy, control and electrical equipment protection. This product is a new product designed by the West High Institute. It has the characteristics of strong complete set, small size, light weight, long life, safety and reliability, and convenient operation and maintenance. The technical performance of the product meets the GB3906 and IEC298 standards. Features HXGNl5A-12 high-voltage ring network switch cabinet, mainly by the cabinet, load switch (including isolation switch, grounding switch), operating mechanism, interlocking mechanism and measurement or metering circuit. The fuse combination appliance scheme can replace the high-cost and large-volume circuit breaker cabinet, and is an ideal equipment for urban ring network power supply. The product is equipped with vacuum or pressure air load switch, the isolation switch, vacuum switch, grounding switch and cabinet door composed of the switch are interlocked with each other according to a certain procedure, which can effectively prevent misoperation and realize fast closing and opening operation. And according to user requirements, the configuration of electric mechanism operation, can also be equipped with a certain protection relay. Fuse combined electrical cabinet, melting tube with a firing pin, short circuit, the firing pin impact trip mechanism, to achieve rapid breaking, can effectively protect electrical equipment. Normal use of environmental conditions ● altitude does not exceed 1000m. ● Ambient temperature:-25 ℃ +40 ℃. ● Relative humidity: the daily average value is not more than 95%, and the monthly average value is not more than 90%. ● No conductive dust, corrosive gas and water vapor places. ● Places free of fire and explosion hazards. ● There is no violent vibration, and the inclination is less than 3 °.
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Product Details
The switch cabinet has the functions of overhead incoming and outgoing lines, cable incoming and outgoing lines, bus connection, etc. Mainly suitable for power plants, substations, petrochemical, metallurgical steel rolling, light industry and textile, factories and mining enterprises and residential areas, high-rise buildings and other different places. It mainly includes high-voltage isolating switch and grounding switch, high-voltage load switch, high-voltage automatic coincidence and segmenter, high-voltage operating mechanism, high-voltage explosion-proof distribution device and high-voltage switch cabinet.
Correct Selection of Breaker Breaking Capacity
On the primary system diagram, the selected circuit breaker, indicating the circuit breaker model, rated working voltage and rated working current, must also be selected for the breaking capacity of the circuit breaker. With user drawings, the breaking capacity of the circuit breaker is not selected, which makes it difficult for the manufacturer to carry out engineering design. The breaking capacity selection should be based on the system short-circuit parameters. If the manufacturer does not understand the system short-circuit parameters, it is difficult to make the correct choice. There are also some user drawings, regardless of the system short-circuit parameters, blindly select high-break parameters, resulting in unnecessary waste of funds. The correct choice of breaking capacity is very important, not only to ensure safe operation, but also to consider reducing product costs.
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